EM300 Series Environment Monitoring Sensor
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Product Information
Specifications:
- Model: EM300 Series
- Description: Environment Monitoring
Sensor
Safety Precautions:
- Milesight will not shoulder responsibility for any loss or
damage resulting from not following the instructions of this
operating guide. - The device must not be disassembled or remodeled in any
way. - Change device password when first configuration. Default
password is 123456. - Do not use the device as a reference sensor to avoid inaccurate
readings. - Avoid placing the device close to objects with naked flames or
outside the operating temperature range. - Ensure electronic components do not fall out while opening the
enclosure. - Install batteries accurately and ensure they are the newest to
avoid reduced battery life. - Avoid subjecting the device to shocks or impacts.
Declaration of Conformity:
The EM300 series complies with the essential requirements of CE,
FCC, and RoHS.
Contact Information:
- Email: iot.support@milesight.com
- Support Portal: support.milesight-iot.com
- Tel: 86-592-5085280
- Fax: 86-592-5023065
- Address: Building C09, Software Park III, Xiamen 361024,
China
Revision History:
The document has undergone several revisions to update features
and models over time.
Product Usage Instructions
1. Product Introduction
1.1 Overview
The EM300 Series consists of various sensors designed for
environmental monitoring purposes.
1.2 Features
- EM300-TH: Temperature and Humidity Sensor
- EM300-MCS: Magnet Switch Sensor
- EM300-SLD: Spot Leak Detection Sensor
- EM300-ZLD: Zone Leak Detection Sensor
- EM300-MLD: Membrane Leak Detection Sensor
- EM300-DI: Pulse Counter Sensor
- EM300-CL: Capacitive Level Sensor
4. Installation
4.1 EM300 Device Installation
Follow the provided instructions to install the EM300 device
securely and correctly.
4.2 Sensor Installation
Install the specific sensor according to its designated
placement and purpose to ensure accurate monitoring.
Frequently Asked Questions (FAQ)
Q: Can I use the default password for the device?
A: It is recommended to change the default password (123456) for
security reasons when setting up the device.
Q: What should I do if the device shows inaccurate
readings?
A: Avoid using the device as a reference sensor and ensure it is
placed correctly within the operating temperature range.
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Environment Monitoring Sensor
Featuring LoRaWAN®
EM300 Series
User Guide
Applicability
This guide is applicable to EM300 series sensors shown as follows, except where otherwise indicated.
Model
Description
EM300-TH
Temperature and Humidity Sensor
EM300-MCS
Magnet Switch Sensor
EM300-SLD
Spot Leak Detection Sensor
EM300-ZLD
Zone Leak Detection Sensor
EM300-MLD
Membrane Leak Detection Sensor
EM300-DI
Pulse Counter Sensor
EM300-CL
Capacitive Level Sensor
Safety Precautions
Milesight will not shoulder responsibility for any loss or damage resulting from not following the instructions of this operating guide. The device must not be disassembled or remodeled in any way. In order to protect the security of the device, please change device password when first
configuration. The default password is 123456. The device is not intended to be used as a reference sensor, and Milesight will not should
responsibility for any damage which may result from inaccurate readings. Do not place the device close to objects with naked flames. Do not place the device where the temperature is below/above the operating range. Make sure electronic components do not drop out of the enclosure while opening. When installing the battery, please install it accurately, and do not install the reverse or
wrong model. Make sure both batteries are newest when install, or battery life will be reduced. The device must never be subjected to shocks or impacts.
Declaration of Conformity
EM300 series is in conformity with the essential requirements and other relevant provisions of the CE, FCC, and RoHS.
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Copyright © 2011-2023 Milesight. All rights reserved. All information in this guide is protected by copyright law. Whereby, no organization or individual shall copy or reproduce the whole or part of this user guide by any means without written authorization from Xiamen Milesight IoT Co., Ltd.
For assistance, please contact Milesight technical support: Email: iot.support@milesight.com Support Portal: support.milesight-iot.com Tel: 86-592-5085280 Fax: 86-592-5023065 Address: Building C09, Software Park III,
Xiamen 361024, China
Revision History
Date Oct. 14, 2020 Oct. 21, 2020 Nov. 19, 2020 Mar. 4, 2021 July 5, 2021 Dec. 7, 2021
Nov. 24, 2022
Oct. 31, 2023
Doc Version V 1.0 V 1.1 V 2.0 V 2.1 V 2.2 V 2.3
V 2.4
V 2.5
Description Initial version Model name change and pictures replace Layout replace Layout update Delete USB Type-C description Add alarm setting, change SN to 16 digits 1. Add EM300-DI model 2. Add Milesight D2D feature 3. Add data storage and retransmission feature 4. Add time synchronization feature 1. Add EM300-MLD and EM300-CL model 2. EM300-DI supports pulse conversation, water flow/outage alarm and D2D feature 3. Change the pulse definition of EM300-DI uplinks
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Contents
1. Product Introduction …………………………………………………………………………………………………………. 5 1.1 Overview …………………………………………………………………………………………………………………..5 1.2 Features ………………………………………………………………………………………………………………….. 5
2. Hardware Introduction ………………………………………………………………………………………………………. 5 2.1 Packing List ………………………………………………………………………………………………………………5 2.2 Hardware Overview ………………………………………………………………………………………………….. 6 2.3 GPIO Wiring (EM300-DI) …………………………………………………………………………………………….6 2.3 Dimensions(mm) ……………………………………………………………………………………………………… 6 2.4 Power Button …………………………………………………………………………………………………………… 6
3. Operation Guide …………………………………………………………………………………………………………………7 3.1 NFC Configuration ……………………………………………………………………………………………………. 7 3.2 LoRaWAN Settings …………………………………………………………………………………………………… 8 3.3 Basic Settings ………………………………………………………………………………………………………… 10 3.4 Interface Settings (EM300-DI) …………………………………………………………………………………. 11 3.5 Advanced Settings …………………………………………………………………………………………………. 12 3.5.1 Calibration Settings ………………………………………………………………………………………. 12 3.5.2 Threshold & Alarm Settings …………………………………………………………………………… 12 3.5.3 Data Storage ………………………………………………………………………………………………… 15 3.5.4 Data Retransmission …………………………………………………………………………………….. 17 3.5.5 Milesight D2D Settings …………………………………………………………………………………..18 3.6 Maintenance ………………………………………………………………………………………………………….. 19 3.6.1 Upgrade ……………………………………………………………………………………………………….. 19 3.6.2 Backup ………………………………………………………………………………………………………….20 3.6.3 Reset to Factory Default …………………………………………………………………………………21
4. Installation ……………………………………………………………………………………………………………………… 22 4.1 EM300 Device Installation ………………………………………………………………………………………. 22 4.2 Sensor Installation …………………………………………………………………………………………………..23
5. Device Payload ……………………………………………………………………………………………………………….. 24 5.1 Basic Information …………………………………………………………………………………………………… 24 5.2 Sensor Data …………………………………………………………………………………………………………… 25 5.2.1 EM300-TH/MCS/xLD ……………………………………………………………………………………..25 5.2.2 EM300-DI ………………………………………………………………………………………………………26 5.2.3 EM300-CL ……………………………………………………………………………………………………..28 5.3 Downlink Commands ……………………………………………………………………………………………… 28 5.3.1 EM300-TH/MCS/xLD ……………………………………………………………………………………..28 5.3.2 EM300-DI ………………………………………………………………………………………………………30 5.3.3 EM300-CL ……………………………………………………………………………………………………..33 5.4 Historical Data Enquiry …………………………………………………………………………………………….34
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1. Product Introduction
1.1 Overview
EM300 series is a sensor mainly used for outdoor environment through wireless LoRaWAN® network. EM300 device is battery powered and designed for multiple mounting ways. It is equipped with NFC (Near Field Communication) and can easily be configured by a smartphone.
Sensor data are transmitted in real-time using standard LoRaWAN® protocol. LoRaWAN® enables encrypted radio transmissions over long distance while consuming very little power. The user can obtain sensor data and view the trend of data change through Milesight IoT Cloud or through the user’s own Network Server.
1.2 Features
Up to 11 km communication range Easy configuration via NFC Standard LoRaWAN® support Milesight IoT Cloud compliant Low power consumption with 4000mAh replaceable battery
2. Hardware Introduction 2.1 Packing List
1 × EM300 Device (Including Sensor)
2 × Wall Mounting Kits
2× Screw Caps
1× Quick Guide
1× Warranty Card
3M Double Sided Tape(SLD, MCS and
CL Sensor Only)
Mounting Screws (SLD or MCS Sensor Only)
Cable-tie (CL Sensor Only)
If any of the above items is missing or damaged, please contact your sales representative.
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2.2 Hardware Overview 2.3 GPIO Wiring (EM300-DI) 2.3 Dimensions(mm)
2.4 Power Button
Note: The LED indicator and power button are inside the device. Turn on/off and reset can also be configured via NFC.
Function Turn On Turn Off
Action Press and hold the button for more than 3 seconds. Press and hold the button for more than 3 seconds.
LED Indication Off On On Off
Reset
Press and hold the button for more than 10 seconds. Blinks quickly.
Check Quickly press the power button.
On/Off Status
Light On: Device is on. Light Off: Device is off.
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3. Operation Guide 3.1 NFC Configuration
EM300 series can be monitored and configured via NFC. Please refer the following steps to complete configuration. 1. Download and install “Milesight ToolBox” App from Google Play or Apple Store. 2. Enable NFC on the smartphone and launch Milesight ToolBox. 3. Attach the smartphone with NFC area to the device and click NFC Read to read device information. Basic information and settings of the device will be shown on ToolBox App if it’s recognized successfully. You can read and configure the device by tapping the Read/Write device on the App. In order to protect the security of the device, please change password when first configuration. The default password is 123456.
Note: 1) Ensure the location of smartphone NFC area and it’s recommended to take off phone case. 2) If the smartphone fails to read/write configurations via NFC, keep the phone away and back to try again. 3) EM300 series can also be configured by dedicated NFC reader provided by Milesight IoT or you can configure it via TTL interface inside the device.
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3.2 LoRaWAN Settings
EM300 series support to configure join type, App EUI, App Key and other information. You can also keep all settings by default.
Parameters
Description
Device EUI
Unique ID of the device which can also be found on the label.
App EUI
Default App EUI is 24E124C0002A0001.
Application Port The port used for sending and receiving data, default port is 85.
Join Type
OTAA and ABP mode are available.
Application Key Appkey for OTAA mode, default is 5572404C696E6B4C6F52613230313823.
Device Address DevAddr for ABP mode, default is the 5th to 12th digits of SN.
Network Session Nwkskey for ABP mode, default is 5572404C696E6B4C6F52613230313823.
Key
Application Session Key
Appskey for ABP mode, default is 5572404C696E6B4C6F52613230313823.
LoRaWAN Version V1.0.2 and V1.0.3 are available.
Work Mode
It’s fixed as Class A.
RX2 Data Rate RX2 data rate to receive downlinks or send D2D commands.
RX2 Frequency Supported Frequency
RX2 frequency to receive downlinks or send D2D commands. Unit: Hz Enable or disable the frequency to send uplinks. If frequency is one of CN470/AU915/US915, enter the index of the channel to enable in the input box, making them separated by commas.
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Examples: 1, 40: Enabling Channel 1 and Channel 40 1-40: Enabling Channel 1 to Channel 40 1-40, 60: Enabling Channel 1 to Channel 40 and Channel 60 All: Enabling all channels Null: Indicate that all channels are disabled
Channel Mode
Select Standard-Channel mode or Single-Channel mode. When Single-Channel mode is enabled, only one channel can be selected to send uplinks.
Spread Factor If ADR is disabled, the device will send data via this spread factor.
If the device does not receive ACK packet from network server, it will resend Confirmed Mode
data once.
Reporting interval 35 mins: the device will send a specific number of
LinkCheckReq MAC packets to the network server every reporting interval or
every double reporting interval to validate connectivity; If there is no response,
Rejoin Mode
the device will re-join the network. Reporting interval > 35 mins: the device will send a specific number of
LinkCheckReq MAC packets to the network server every reporting interval to
validate connectivity; If there is no response, the device will re-join the
network.
Set the number of packets sent
When the rejoin mode is enabled, set the number of LinkCheckReq packets to send. Note: the actual sending number is Set the number of packet sent + 1.
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ADR Mode Tx Power
Allow network server to adjust datarate of the device. Transmit power of device.
Note: 1) Please contact sales for device EUI list if there are many units. 2) Please contact sales if you need random App keys before purchase. 3) Select OTAA mode if you use Milesight IoT Cloud to manage devices. 4) Only OTAA mode supports rejoin mode.
3.3 Basic Settings
Go to Device > Setting > General Settings to change the reporting interval, etc.
Parameters Reporting Interval
Temperature Unit
Description Reporting interval of transmitting current sensor values to network server. Range: 1-1080 mins, Default: 10 mins (EM300-TH/MCS/SLD/ZLD/ DI), 1080 mins (EM300-MLD) Change the temperature unit displayed on the ToolBox. Note: 1) The temperature unit in the reporting package is fixed as Celsius(°C). 2) Please modify the threshold settings if the unit is changed.
Data Storage
Disable or enable data storage locally.
Data Retransmission
Disable or enable data retransmission.
Change Password Change the password for ToolBox App to write this device.
EM300-CL:
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Parameters Reporting Interval
Full Liquid Calibration
Change Password
Description Reporting interval of transmitting battery level and liquid status to network server. Range: 1-1440 mins, Default: 1440 mins When the liquid is full, click the Calibrate button to record the full status. After calibrated, the device will report a calibration result packet. Note: 1) The device will calibrate once automatically after turning on 20 minutes. 2) The alarm feature will not work if liquid calibration did not proceed. 3) Please re-calibrate it if the full liquid height changes. Change the password for ToolBox App to write this device.
3.4 Interface Settings (EM300-DI)
Go to Device > Settings > Interface Settings to modify configurations.
Parameters Interface Type
Description Change the interface type of GPIO interface as Counter or Digital.
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Pulse Filter
When the function is enabled, pulse with a rate of more than 250us can be counted.
Modify Count Value Set the initial counting value.
Set the value that converts pulses to a specific water consumption.
Pulse Value Conversion
Water_conv Unit
Pulse_conv
Note: water_conv=water conversion value, pulse_conv=pules conversion
value.
3.5 Advanced Settings
3.5.1 Calibration Settings
EM300-TH/MCS/SLD/ZLD/DI supports temperature and humidity calibration. The device will add the calibration value to raw value and upload the final values to network server.
3.5.2 Threshold & Alarm Settings
EM300 series supports various types of alarm settings.
1) Temperature Threshold Alarm:
EM300-TH/MCS/SLD/ZLD/DI supports temperature threshold alarm settings. When current temperature is over or below the threshold value, the device will report the threshold alarm packet once instantly. Only when the threshold alarm is dismissed and re-triggered, the device will report the alarm again.
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Parameters Collect Interval
Description The interval to detect temperature after threshold alarm triggers. This interval should be less than reporting interval.
2) EM300-MCS/SLD/ZLD/MLD:
Parameters Alarm Reporting
Alarm Reporting Interval Alarm Reporting Times
Description After enabled, the device will report the alarm packet when the door status changes to open or water is detected to leak. The interval to report digital status after alarm triggers. This interval should be less than reporting interval. Alarm packet report times after alarm triggers.
3) EM300-DI:
When interface type is Digital:
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Parameters Alarm Reporting
Alarm Reporting Interval Alarm Reporting Times
Description After enabled, the device will report the alarm packet according to digital change options. The interval to report digital status after alarm triggers. This interval should be less than reporting interval. Alarm packet report times after alarm triggers.
When interface type is Pulse:
Parameters
Duration for Water Flow Determination/s
Description If the pulse counter does not increase for this duration time, the device will judge current status as “Water Outage”; otherwise, the device will judge current status as “Water Flow”.
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Water Flow Timeout Alarm
Water Outage Timeout Alarm
If the “Water Flow” status has passed the timeout interval, the device will report a water flow timeout alarm packet. If the water flow status stops during next timeout interval, the device will report the alarm dismiss packet; otherwise, it will report an alarm packet again. If the “Water Outage” status has passed the timeout interval, the device will report a water outage timeout alarm packet. If the water outage status stops during next timeout interval, the device will report the alarm dismiss packet; otherwise, it will report an alarm packet again.
4) EM300-CL:
Parameters
Alarm Reporting
Status Detection Interval Alarm Reporting Times Alarm Dismiss Report
Description After enabled, the device will report the alarm packet when the liquid level of container is lower than the installation height of detection electrode sheet. The interval to detect liquid status after alarm triggers. Alarm packet report times after alarm triggers. After enabled, the device will report the alarm dismiss packet once when the liquid of container is changed to full.
3.5.3 Data Storage
EM300 series (except EM300-CL) supports storing data records locally and exporting data via ToolBox App. The device will record the data according to reporting interval and even join network. 1. Go to Device > Status of ToolBox App to click Sync to sync the time.
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Besides, when device LoRaWAN® version is set as 1.0.3, the device will send MAC commands to ask the network server for the time every time it joins the network. 2. Go to Device > Setting > General Settings to enable data storage feature. 3. Go to Device > Maintenance, click Export, then select the data time range and click Confirm to export data. ToolBox App can only export last 14 days’ data.
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3.5.4 Data Retransmission
EM300 series (except EM300-CL) supports data retransmission to ensure network server can get all data even if network is down for some times. There are two ways to get the lost data: Network server sends downlink commands to to enquire the historical data for specifying
time range, see section Historical Data Enquiry; When network is down if no response from LinkCheckReq MAC packets for a period of time,
the device will record the network disconnected time and re-transmit the lost data after device re-connects the network. Here are the steps for data retransmission: 1. Enable data storage feature and data retransmission feature;
2. Go to Device > Setting > General Settings to enable rejoin mode feature and set the number of packets sent. Take below as an example, the device will send LinkCheckReq MAC packets to the network server regularly to check for any network disconnection; if there is no response for 8+1 times, the join status will change to de-active and the device will record a data lost time point (the time it reconnected to the network).
3. After the network connected back, the device will send the lost data from the point in time
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when the data was lost according to the reporting interval. Note: 1) If the device is rebooted or re-power when data retransmission is not completed, the device will re-send all retransmission data again after device is reconnected to the network; 2) If the network is disconnected again during data retransmission, it will only send the latest disconnected data; 3) The retransmission data format is started with “20ce” or “21ce”, please refer to see section Historical Data Enquiry. 4) Data retransmission will increase the uplinks and shorten the battery life.
3.5.5 Milesight D2D Settings
Milesight D2D protocol is developed by Milesight and used for setting up transmission among Milesight devices without gateway. When the Milesight D2D settings is enabled, EM300 series (except EM300-CL) can work as D2D controller to send control commands to trigger Milesight D2D agent devices. 1. Configure RX2 datarate and RX2 frequency in LoRaWAN® settings, it is suggested to change the default value if there are many LoRaWAN® devices around. 2. Go to Device > Setting > D2D Settings to enable Milesight D2D feature. 3. Define an unique D2D key which is the same as Milesight D2D agent devices. (Default D2D key: 5572404C696E6B4C6F52613230313823)
4. Enable one of status mode and configure 2-byte hexadecimal Milesight D2D command. When the status is triggered, EM300 series sensor will send this control command to corresponding Milesight D2D agent devices. Take EM300-ZLD as example below:
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Note: 1) If you enable LoRa Uplink, a LoRaWAN® uplink packet that contains corresponding alarm status will be sent to gateway after the Milesight D2D control command packet. Otherwise, the alarm packet will not send to LoRaWAN® gateway. 2) If you want to enable Temperature Threshold Trigger Status: Trigger or Temperature Threshold Trigger Status: not triggered, please enable and configure temperature threshold feature under Threshold Settings. 3) For EM300-DI, if you want to enable water flow or outage settings, please enable and configure water flow threshold feature under Threshold Settings.
3.6 Maintenance
3.6.1 Upgrade
1. Download firmware from Milesight website to your smartphone. 2. Open Toolbox App and click Browse to import firmware and upgrade the device. Note: 1) Operation on ToolBox is not supported during an upgrade. 2) Only Android version ToolBox supports the upgrade feature.
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3.6.2 Backup
EM300 devices support configuration backup for easy and quick device configuration in bulk. Backup is allowed only for devices with the same model and LoRaWAN® frequency band. 1. Go to Template page on the App and save current settings as a template. You can also edit the template file. 2. Select one template file which saved in the smartphone and click Write, then attach to another device to write configuration.
Note: Slide the template item left to edit or delete the template. Click the template to edit the configurations.
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3.6.3 Reset to Factory Default
Please select one of following methods to reset device: Via Hardware: Hold on power button (internal) for more than 10s until LED blinks. Via ToolBox App: Go to Device > Maintenance to click Reset, then attach smart phone with NFC area to device to complete reset.
Note: Reset operation will not clean the stored data, please click Data Cleaning to clear data if necessary.
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4. Installation 4.1 EM300 Device Installation
1. Attach EM300 device to the wall and mark the two holes on the wall. The connecting line of two holes must be a horizontal line. 2. Drill the holes according to the marks and screw the wall plugs into the wall. 3. Mount the EM300 to the wall via mounting screws. 4. Cover the mounting screws with screw caps.
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Besides, it can also be mounted to a wall via 3M tape or be mounted to a pole via cable-tie.
4.2 Sensor Installation
EM300-MLD/SLD/ZLD
Refer to Water Leakage Sensor Installation Guide.
EM300-MCS
Fix the two magnet parts with 3M tape or screws, the two parts should be aligned.
Fixed by Screws
Fixed by 3M Tape
EM300-CL
Attach the detection electrode sheet to the wall of the container seamlessly, aligning it with the bottom of the container to detect the liquid capacity. The detection electrode sheet can be fixed to the container wall using 3M tape, and then covered with protective foam on the outside. Or you can first attach the protective foam to the outside of the detection electrode sheet and then fix them to the container wall using a cable tie.
Fixed by 3M Tape
Fixed by Cable-tie
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Full
No Sure
No Sure
Empty
Empty
Note: 1) This product is not applicable to metal conductive metal containers, absorbent non-metal material containers (cement, wood board, ceramic, tiles, bricks, etc.) or liquid in bags. 2) This product is applicable to the containers made up of insulating non-metallic materials and with flat surfaces and uniform thickness, like plastic, glass, acrylic, etc. 3) It is suggested that the side walls of container do not exceed 3mm. 4) Avoid the detection electrode sheet facing the liquid inlet or the path of the liquid inlet flow. 5) Clean the container to avoid the detection results to be affected by silt or other debris. 6) Avoid detection electrode sheet to be attached by detection liquids, or this will affect the detection results. 7) If the detection liquid is too thick, it will hang to the side wall of container, and will delay the time of leak detection and alarm. 8) Keep the distance of both detection electrode sheets more than 15cm to avoid detection interference if you have two EM300-CL sensors.
5. Device Payload
All data are based on following format (HEX), the Data field should follow little-endian:
Channel1 Type1 Data1 Channel2 Type2 Data2 Channel 3 …
1 Byte 1 Byte N Bytes 1 Byte 1 Byte M Bytes 1 Byte
…
For decoder examples please find files on https://github.com/Milesight-IoT/SensorDecoders.
5.1 Basic Information
EM300 series sensors report basic information of sensor whenever joining the network.
Channel
Type
Description
0b (Power On)
ff, this means the device is on
01(Protocol Version) 01=>V1
09 (Hardware Version) 01 40 => V1.4 ff
0a(Software Version) 01 14 => V1.14
0f(Device Type) 16(Device SN)
00: Class A, 01: Class B, 02: Class C 16 digits
Example:
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ff0bff ff0101 ff166136c40091605408 ff090300 ff0a0101 ff0f00
Channel ff
Channel ff
Channel
ff
Type 0b
(Power On) Type 16
(Device SN) Type 0a
(Software Version)
Value
ff
Value 6136c400916054
08 Value
0101 (V1.1)
Channel ff
Channel ff
Channel
ff
Type 01
(Protocol Version) Type 09
(Hardware Version) Type
0f (Device Type)
Value 01 (V1)
Value 0300 (V3.0) Value
00 (Class A)
5.2 Sensor Data
5.2.1 EM300-TH/MCS/xLD
Item
Channel
Battery Level
01
Temperature
03
Humidity
04
Water Leakage
05
Magnet Status
06
Type 75 67 68 00 00
Description UINT8, Unit: % INT16/10, Unit: °C UINT8/2, Unit: %RH 00: Not leak, 01: Leaked 00: Close, 01: Open (Separate)
Examples: 1. Periodic packet: reports according to reporting interval. EM300-MCS:
03671001 046871 060000
Channel
Type
Value
Channel Type
Value
67 03
(Temperature)
Channel 06
Type 00
10 01 => 01 10 =
272/10=27.2°C Value
00=close
68
04
113/2=56.5%RH
(Humidity)
EM300-MLD:
Channel 05
05 00 00 Type 00(Water Leakage Status)
Value 00=No leak
2. Battery level packet: 1) Report once with sensor data after joining the network; 2) Report every 6 hours; 3) Report once when the battery level is below 10%.
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Channel 01
01 75 64 Type 75(Battery)
Value 64 => 100%
3. Temperature threshold alarm packet: reports once when temperature reaches the threshold.
03671001
Channel
Type
Value
03
67
10 01 => 01 10 = 272/10=27.2°C
4. Magnet or water leakage change packet: reports the change immediately and according to alarm settings.
03671001 046871 050001
Channel
Type
Value
Channel Type
Value
03
67 (Temperature)
Channel 05
Type 00(Water Leakage Status)
10 01 => 01 10 = 272/10=27.2°C
Value
01=>Water is leaked
04
68 (Humidity)
113/2=56.5%RH
5.2.2 EM300-DI
Item Battery Level Temperature
Humidity Digital Input Pulse Counter
Pulse Counter
Channel 01 03 04 05 05
05
Type 75 67 68 00 c8
e1
Description
UINT8, Unit: %
INT16/10, Unit: °C
UINT8/2, Unit: %RH
00: Low, 01: High
UINT32, for firmware V1.2 and before 8 Bytes, water_conv(2B) + pulse_conv (2B) + Water consumption (4B) Water/Pulse_conv: UINT16/10, see description on Pulse Value Conversion Water consumption: Float32 Note: 1) Water consumption=Water_conv/pulse_conv * pulse counter value; 2) If pulse value conversion is disabled, water_conv and pulse_conv are fixed as 0x0a00 (10), and the water consumption=pulse counter value.
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DI Alarm Pulse Alarm
2 Bytes,
85
00 Byte 1: 01=High, 00=Low,
Byte 2: 01=Alarm, 00=Alarm dismiss
9 Bytes, water_conv(2B) + pulse_conv (2B) +
Water consumption (4B) + Alarm Status (1B)
Alarm Status:
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e1 01-Water outage timeout alarm
02-Water outage timeout alarm dismiss
03-Water flow timeout alarm
04-Water flow timeout alarm dismiss
Examples: 1. Periodic packet: reports according to reporting interval (10 min by default). EM300-DI (Digital)
03671e01 046894 050001
Channel
Type
Value
Channel Type
Value
67 03
(Temperature)
Channel 05
Type 00
1e 01 => 01 1e =
286/10=28.6°C Value
01=High
68
04
94/2=47%RH
(Humidity)
EM300-DI (Counter)
03671e01 046894 05e10a000a0000005b43
Channel
Type
Value
Channel
Type
03
67 (Temperature)
Channel
Type
05
e1(Counter)
1e 01 => 01 1e =
04
286/10=28.6°C
Value
Water_conv & Pulse_conv:
0a00=>10/10=1
Water consumption: 00 00 5b
43=>43 5b 00 00=219
68 (Humidity)
Value 94/2=47%
2. Temperature threshold alarm packet: reports once when temperature reaches the threshold.
03671001
Channel
Type
Value
67
03
(Temperature) 10 01 => 01 10 = 272 *0.1=27.2°C
3. Pulse alarm packet: reports the change immediately and according to threshold settings.
85e10a000a0000005b43 01
Channel
Type
Value
27
85
e1(Counter)
Water_conv & Pulse_conv: 0a00=>10/10=1 Water consumption: 00 00 5b 43=>43 5b 00 00=219
Alarm Status: 01-Water outage timeout alarm
5.2.3 EM300-CL
Item Battery Level
Channel 01
Liquid Level Status 03
Calibration Status
04
Liquid Level Alarm
83
Type 75 ed ee
ed
Description UINT8, Unit: % 00: Uncalibrated, 01: Full, 02: Empty, ff: Sensor error or not connect 00: Failure; 01: Success 2 Bytes, Byte 1: 00=Uncalibrated, 01=Full, 02=Empty, ff=Sensor error or not connect Byte 2: 01=Alarm, 00=Alarm dismiss
Examples: 1. Periodic packet: reports according to reporting interval (1440 min by default).
017564 03ed01
Channel Type
Value
Channel
Type
Value
Battery level: 64 =>
01
75
100%
03
Liquid status:
ed
01=full
2. Alarm packet: reports according to alarm settings.
83ed00
Channel
Type
Value
83
ed
Liquid status: 01=empty
5.3 Downlink Commands
EM300 series sensors support downlink commands to configure the device. The application port is 85 by default.
5.3.1 EM300-TH/MCS/xLD
Command
Channel Type
Description
Reboot
ff
10 ff
Collect Interval
ff
02 2 Bytes, unit: s
Report Interval
ff
03 2 Bytes, unit: s
Threshold Alarm
ff
9 Bytes, CTRL (1B) + Min (2B) + Max 06
(2B) +00000000(4B)
28
D2D Setting
ff
Data Storage
ff
Data ff
Retransmission
Data
Retransmission
ff
Interval
CTRL: Bit2~0: 000 – disable 001 – below (minimum threshold) 010 – over (maximum threshold) 011 – within 100 – below or over Bit 5~3: 001 – Temperature 010 – Magnet or water leakage Bit 7~6: 00 4 Bytes, Number(1B)+Function(1B)+D2D Command(2B) Number: 01 -Temperature threshold trigger 02 -Temperature threshold doesn’t 79 trigger 03 – Status trigger 04 -Status doesn’t trigger Function: 00 -Disable 01 -Only use D2D 03 -Use D2D&LoRaWAN Uplink 68 00: disable, 01: enable
69 00: disable, 01: enable
3 Bytes Byte 1: 00 6a Byte 2-3: interval time, unit: s range: 30~1200s (600s by default)
Examples: 1. Set reporting interval as 20 minutes.
ff03b004
29
Channel
Type
ff
03 (Report Interval)
Value b0 04 => 04 b0 = 1200s= 20 minutes
2. Reboot the device.
Channel ff
ff10ff Type 10 (Reboot)
Value ff (Reserved)
3. Set a temperature threshold as below 15°C or over 30°C.
ff 06 0c96002c0100000000
Channel
Type
ff
06 (Set Threshold Alarm)
Value CTRL:0c =>00 001 100 001=temperature threshold
100 = below or over Min:96 00=> 00 96 =150/10= 15°C Max: 2c 01=>01 2c = 300/10=30°C
4. Set D2D settings of temperature threshold trigger.
ff 79 01011001
Channel ff
Type 79 (D2D settings )
Value Number: 01=temperature threshold trigger
Function: 01=only use D2D D2D Command: 1001=>0110
5.3.2 EM300-DI
Command Reboot
Collect Interval Report Interval UTC Time Zone Data Storage
Data Retransmission
Data Retransmission
Interval
Interface Type
Channel ff ff ff ff ff ff
ff
ff
Type 10 02 03 17 68
Description ff 2 Bytes, unit: s 2 Bytes, unit: s 2 Bytes, INT16/10 00: disable, 01: enable
69 00: disable, 01: enable
3 Bytes Byte 1: 00 6a Byte 2-3: interval time, unit: s range: 30~1200s (600s by default) c3 01: Digital, 02: Counter
30
Pulse Digital Filter
ff
Modify Initial ff
counting value
Pulse Value ff
Conversion
Pulse counter
ff
Temperature ff
Threshold Alarm
Water Flow ff
Threshold Alarm
Duration for Water
Flow
ff
Determination
D2D Setting
ff
a3 0100-disable, 0101-enable
92 01+Initial counting value (4B)
9 Bytes Byte 1: 00=disable, 01=enable a2 Byte 2-3: Water_conv Byte 4-5: Pulse_conv Byte 6-9: Unit, ASCII code 0100-Clean the count 4e 0101-Stop counting 0102-Start counting 9 Bytes, CTRL (1B) + Min (2B) + Max (2B) +00000000(4B) CTRL: Bit2~0: 000 – disable 06 001 – below (minimum threshold) 010 – over (maximum threshold) 011 – within 100 – below or over Bit 7~3: 00001 7 Bytes, 01+Number (1B)+Enable(1B)+ Timeout Interval (4B) Number: 00 -Water flow threshold setting a1 01 -Water flow timeout alarm 02 -Water outage timeout alarm Enable: 00 -Disable, 01 -Enable Timeout Interval: UINT32, unit: min
a4 2 Bytes, unit: s
4 Bytes, Number(1B)+Enable(1B)+D2D Command(2B) 79 Number: 01 -Water outage timeout alarm
31
02 -Water outage timeout alarm release 03 -Water flow timeout alarm 04 -Water flow timeout alarm release 05-DI from low to high 06-DI from high to low Enable: 00 -Disable 01 -Only use D2D 03 -Use D2D&LoRaWAN Uplink
Example:s 1. Set reporting interval as 20 minutes.
Channel ff
Type 03
ff03b004 Value
b0 04 => 04 b0 = 1200s= 20 minutes
2. Reboot the device.
Channel ff
Type 10
ff10ff
Value ff (Reserved)
3. Set time zone.
Channel ff
Type 17
ff17ecff Value
ec ff => ff ec = -20/10=-2 The time zone is UTC-2
4. Set pulse conversion: 1ml=10 pulses.
ffa2 01 0a00 6400 6d6c0000
Channel
Type
Value
01=Enable
ff
a2
Water_conv: 0a00=>00 0a=10/10=1 Pulse_conv: 6400=>0064=100/10=10
Unit: 6d 6c 00 00=>ml (hex to ascii)
5. Set a temperature threshold as below 15°C or over 30°C.
ff 06 0c96002c0100000000
Channel
Type
Value
ff
06
CTRL:0c =>11 001 100
32
100 = below or above Min:96 00=> 00 96 =150/10= 15°C Max: 2c 01=>01 2c = 300/10=30°C
6. Enable water outage timeout alarm and set timeout interval as 10 minutes.
ffa1 01 0001 00000000 ff a1 01 0201 0a000000
Channel
Type
Value
ff
a1
ff
a1
00=Water flow threshold setting 01=Enable
02=Water outage timeout alarm 01=Enable
0a 00 00 00=>00 00 00 0a=10 minutes
7. Set D2D settings of water outage timeout alarm.
ff 79 01011001
Channel
Type
Value
Number: 01=Water outage timeout alarm
ff
79
Function: 01=Enable D2D
D2D Command: 1001=>0110
5.3.3 EM300-CL
Command Reboot
Reporting Interval Status Detection Interval
Alarm Reporting
Full Liquid Calibration
Channel ff ff ff
ff
ff
Type 10 8e bb
7e
62
Description ff 00 + Interval Time(2B), unit: min 00 + Interval Time(2B), unit: min Note: this interval time should be less than reporting interval. 5 Bytes, CTRL (1B) + 0000 + Alarm Reporting Times (2B) CTRL: 00=Disable, 01=Enable alarm reporting, disable alarm dismiss report 81=Enable alarm reporting and alarm dismiss report ff
33
Examples: 1. Set reporting interval as 20 minutes.
ff8e 00 1400
Channel ff
Type 8e (Reporting Interval)
Value 14 00=>00 14=>20 mins
2. Reboot the device.
Channel ff
ff10ff Type 10 (Reboot)
Value ff
3. Enable alarm reporting, set reporting times as 5 and enable alarm dismiss report .
ff7e 81 0000 0500
Channel ff
Type 7e
Value 81=Enable alarm reporting and alarm dismiss report
0500=>00 05=5 reporting times
5.4 Historical Data Enquiry
EM300 series sensor supports sending downlink commands to enquire historical data for specified time point or time range. Before that, ensure the device time is correct and data storage feature was enabled to store the data.
Command format:
Channel
Type
Description
fd
6b (Enquire data in time point) 4 Bytes, unix timestamp
Start time (4 bytes) + End time (4 bytes),
fd
6c (Enquire data in time range)
Unix timestamp
fd
6d (Stop query data report)
ff
3 Bytes,
ff
6a (Report Interval)
Byte 1: 01 Byte 2: interval time, unit: s,
Reply format:
range: 30~1200s (60s by default)
Channel
Type
Description
00: data enquiry success
fc 6b/6c
01: time point or time range invalid
02: no data in this time or time range
34
20 ce (Historical Data) Data time stamp (4B) + Data Contents (Mutable)
ce (EM300-DI 21
Historical Data)
Data time stamp (4B) + Temperature(2B) +Humidity(1B) + Alarm Type (1B) + Interface Type(1B) + Digital(1B)+ Water_conv (2B) + Pulse_conv (2B) + Water consumption(4B)
Data format:
Sensor
Description
EM300-TH
Temperature(2B) + Humidity(1B)
EM300-MCS
Temperature(2B) + Humidity(1B) + Door Status(1B)
EM300-SLD/EM300-ZLD Temperature(2B) + Humidity(1B) + Leakage Status(1B)
EM300-MLD
Leakage Status(1B)
EM300-DI (With firmware Temperature(2B) + Humidity(1B) + Interface Type(1B) +
version 1.2 and before) Counter(4B) + Digital(1B)
Note: 1. For EM300-DI model: Interface Type: 00=digital, 01=counter Alarm Type: 00=No, 01=water outage timeout alarm, 02=water outage timeout dismiss alarm, 03=water flow timeout alarm, 04=water flow timeout dismiss alarm, 05=DI alarm, 06=DI dismiss alarm.
2. The device only uploads no more than 300 data records per range enquiry. 3. When enquiring the data in time point, it will upload the data which is closest to the search point within the reporting interval range. For example, if the device’s reporting interval is 10 minutes and users send command to search for 17:00’s data, if the device find there is data stored in 17:00, it will upload this data; if not, it will search for data between 16:50 to 17:00 and upload the data which is closest to 17:00.
Example: 1. Enquire historical data between 2022/10/28 14:15:00 to 2022/10/28 15:45:00.
fd6c 64735b63 7c885b63
Channel
Type
6c (Enquire data in time fd
range)
Value Start time: 64735b63 => 635b7364 = 1666937700 =2022/10/28 14:15:00 End time: 7c885b63 => 635b887c = 1666943100 =2022/10/28 15:45:00
Reply: Channel
fc6c00 Type
Value
35
fc
6c (Enquire data in time range) 00: data enquiry success
Channel 21
21ce 0d755b63 0801 57 00 02 00 0a00 6400 3333af41
Type
Time Stamp
ce (EM300-DI Historical Data)
0d755b63 => 2022/10/28
14:22:05
Value Temperature: 0801=>0108=26.4 °C
Humidity: 57=>87=43.5%RH Alarm Type: 00=No
Interface Type: 02=Counter Digital: None
Water_conv: 0a00=>000a=10/10=1 Pulse_conv: 6400=>0064=100/10=10
Water consumption: 3333af41=>41af3333=21.9
-END-
36
Documents / Resources
 | RG2i EM300 Series Environment Monitoring Sensor [pdf] User Guide EM300-TH, EM300-MCS, EM300-SLD, EM300-ZLD, EM300-MLD, EM300-DI, EM300-CL, EM300 Series Environment Monitoring Sensor, EM300 Series, Environment Monitoring Sensor, Monitoring Sensor, Sensor |