netvox RA08B Wireless Multi Sensor Device User Manual

Power On: Insert batteries. Use a screwdriver if needed to open the battery cover. Press and hold the function key for 3 seconds until the green indicator flashes.
Power Off: Press and hold the function key for 5 seconds until the green indicator flashes once. Release the function key. The device will shut down after the indicator flashes 10 times.

Reset to Factory Setting: Press and hold the function key for 10 seconds until the green indicator flashes fast for 20 times. The device will reset and shut down.

Network Joining
Never Joined the Network: Turn on the device to search for the network. The green indicator stays on for 5 seconds for a successful connection; remains off for a failed connection.

Frequently Asked Questions (FAQ)

How do I know if my device has successfully joined the network?
The green indicator will stay on for 5 seconds to indicate a successful network connection. If it remains off, the network joining has failed.
How do I increase the battery life of the device?
To maximize battery life, ensure the device is turned off when not in use. Additionally, consider using high-quality batteries and avoid frequent power cycling.

Copyright© Netvox Technology Co., Ltd.
This document contains proprietary technical information which is the property of NETVOX Technology. It shall be maintained in strict confidence and shall not be disclosed to other parties, in whole or in part, without written permission of NETVOX Technology. The specifications are subject to change without prior notice.

Introduction

RA08B series is a multi-sensor device that helps users monitor indoor air quality. With temperature/humidity, CO2, PIR, air pressure, illuminance, TVOC, and NH3/H2S sensors equipped in one device, just one RA08B can satisfy all your needs. In addition to RA08B, we also have the RA08BXXS series. With an e-paper display, users can enjoy better and more convenient experiences through an easy and quick check of data.

RA08BXX(S) series models and sensors:

LoRa Wireless Technology:
LoRa is a wireless communication technology that adopts techniques such as long-distance communication and low power consumption. Compared with other communication methods, LoRa spread-spectrum modulation techniques greatly expand the communication distance. It is used in long-distance and low-data wireless communications like automatic meter reading, building automation equipment, wireless security systems, and industrial monitoring control system. The features include small size, low power consumption, long transmission distance, and anti-interference ability.

LoRaWAN:
LoRaWAN built LoRa’s end-to-end standards and techniques, ensuring interoperability between devices and gateways from different manufacturers.

Appearance

Features

SX1262 wireless communication module.

4 ER14505 battery in parallel (AA size 3.6V for each battery)
Temperature/Humidity, CO2, PIR, air pressure, illuminance, TVOC, and NH3/H2S detection.

Compatible with LoRaWANTM Class A device.
Frequency hopping spread spectrum.

Support third-party platforms: Actility/ThingPark, TTN, MyDevices/Cayenne
Low-power design for longer battery life
Note: Please refer to http://www.netvox.com.tw/electric/electric_calc.html for battery life calculation and other detailed information

Set-up Instruction

On/Off

Power on	Insert batteries. (Users may need a screwdriver to open battery cover.)
Turn on	Press and hold the function key for 3 seconds until the green indicator flashes.
Turn off	Press and hold the function key for 5 seconds until green indicator flashes once. Then release the function key. The device will automatically shut down after the indicator flashes 10 times.
Reset to factory setting	Press and hold the function key for 10 seconds until green indicator flashes fast for 20 times. The device will reset to factory setting and automatically shut down.
Power off	Remove Batteries.
Note	1. When user removes and inserts the battery; the device should be off by default. 2. 5 seconds after power on, the device will be in engineering test mode. 3. On/off interval is suggested to be about 10 seconds to avoid the interference of capacitor inductance and other energy storage components.

Network Joining

Never joined the network

Turn on the device to search the network to join. The green indicator stays on for 5 seconds: Success The green indicator remains off: Fail

Had joined the network (without factory resetting)

Turn on the device to search the previous network to join. The green indicator stays on for 5 seconds: Success

The green indicator remains off: Fail

Fail to join the network

Please check the device verification information on the gateway or consult your platform server provider.

Function Key

Press and hold for 5 seconds	Turn off Long press the function key for 5 seconds and the green indicator flashes once. Release the function key and the green indicator flashes 10 times. The green indicator remains off: Fail
Press and hold for 10 seconds	Reset to factory setting / Turn off The green indicator flashes 20 times: Success Long press the function key for 5 seconds the green indicator flash once. Keep pressing the function key for more than 10 seconds, the green indicator flashes 20 times. The green indicator remains off: Fail
Short press	The device is in the network: green indicator flashes once, screen refreshes once, and send a data report The device is not in the network: screen refreshes once and the green indicator remains off
Note	User should wait at least 3 seconds to press the function key again or it would not work properly.

Sleeping Mode

The device is on and in the network

Sleeping period: Min Interval.

When the reportchange exceeds the setting value or the state changes, the device will send a data report based on the Min Interval.

The device is on but not in the network

1. Please remove the batteries when the device is not in use.

2. Please check the device verification information on the gateway.

Low Voltage Warning

Low Voltage

3.2 V

Data Report

After power on, the device would refresh the information on the e-paper display and send a version packet report along with an uplink packet.
The device sends data based on the default configuration when no configuration is done.
Please do not send commands without turning on the device.

Default Setting:

Max Interval: 0x0708 (1800s)
Min Interval: 0x0708 (1800s)
IRDisableTime: 0x001E (30s)
IRDectionTime: 0x012C (300s)
The Max and Min Interval shall not be less than 180s.

CO2:

Fluctuation of CO2 data caused by delivery and storage time could be calibrated.
Please refer to 5.2 Example of ConfigureCmd and 7. CO2 Sensor Calibration for detailed information.

TVOC:

Two hours after power on, the data sent by TVOC sensor are for reference only.
If the data is way higher or below the setting, the device should be placed in the environment with fresh air in 24 to 48 hours until the data is back to normal value.

TVOC level:

Very good < 150 ppm

Good 150-500 ppm

Medium 500-1500 ppm

Poor 1500-5000 ppm

Bad > 5000 ppm

Data shown on the RA08BXXS E-Paper Display:

The information shown on the screen is based on user’s choice of sensor. It would be refreshed by pressing the function key, triggering the PIR, or refreshed based on the report interval.
FFFF of reported data and “—” on the screen means the sensors are turning on, disconnected, or errors of sensors.

Data Collecting and Transmission:

Join the network:
Press the function key (indicator flashes once) / trigger PIR, read data, refresh screen, report detected data (based on the report interval)

Without joining the network:
Press the function key / trigger PIR to get data and refresh the information on the screen.
- ACK = 0x00 (OFF), interval of data packets = 10s;
- ACK = 0x01 (ON), interval of data packets = 30s (cannot be configured)
  Note: Please refer Netvox LoRaWAN Application Command document and Netvox Lora Command Resolver http://www.netvox.com.cn:8888/cmddoc to resolve uplink data.

Data report configuration and sending period are as follows:

Min. Interval (Unit: second)	Max. Interval (Unit: second)	Detection Interval	Report Interval
180 – 65535	180 – 65535	MinTime	Exceed the setting value: report based on the MinTime or the MaxTime interval

Example of ReportDataCmd

Bytes	1 Byte	1 Byte	1 Byte	Var (Fix = 8 Bytes)
	Version	DevieType	ReportType	NetvoxPayLoadData

Version– 1 bytes –0x01——the Version of NetvoxLoRaWAN Application Command Version

DeviceType– 1 byte – Device Type of Device The devicetype is listed in Netvox LoRaWAN Application Devicetype V1.9.doc
ReportType –1 byte–The presentation of the Netvox PayLoad Data,according the device type
NetvoxPayLoadData– Fixed bytes (Fixed =8bytes)

Tips

Battery Voltage:
- The voltage value is bit 0 ~ bit 6, bit 7=0 is normal voltage, and bit 7=1 is low voltage.
- Battery=0xA0, binary=1010 0000, if bit 7= 1, it means low voltage.
- The actual voltage is 0010 0000 = 0x20 = 32, 32*0.1v =3.2v
Version Packet:
When Report Type=0x00 is the version packet, such as 01A0000A01202307030000, the firmware version is 2023.07.03.

Data Packet:
When Report Type=0x01 is data packet. (If the device data exceeds 11 bytes or there are shared data packets, the Report Type will have different values.)

Signed Value:
When the temperature is negative, 2’s complement should be calculated.

Device

Device Type

Report Type

NetvoxPayLoadData

RA08B

Series

0xA0

0x01

Battery (1Byte, unit:0.1V)

Temperature (Signed 2Bytes,

unit:0.01°C)

Humidity (2Bytes, unit:0.01%)

CO2

(2Byte, 1ppm)

Occupy (1Byte) 0: Un Occupy

1: Occupy)

0x02

Battery (1Byte, unit:0.1V)

AirPressure (4Bytes, unit:0.01hPa)

Illuminance (3Bytes, unit:1Lux)

0x03

Battery (1Byte, unit:0.1V)

PM2.5

(2Bytes, Unit:1 ug/m³)

PM10

(2Bytes, Unit: 1ug/m³)

TVOC

(3Bytes, Unit:1ppb)

0x05

Battery (1Byte, unit:0.1V)

ThresholdAlarm(4Bytes)

Bit0: TemperatureHighThresholdAlarm, Bit1: TemperatureLowThresholdAlarm, Bit2: HumidityHighThresholdAlarm, Bit3: HumidityLowThresholdAlarm, Bit4: CO2HighThresholdAlarm,

Bit5: CO2LowThresholdAlarm,

Bit6: AirPressure HighThresholdAlarm, Bit7: AirPressure LowThresholdAlarm, Bit8: illuminanceHighThresholdAlarm, Bit9: illuminanceLowThresholdAlarm, Bit10: PM2.5HighThresholdAlarm, Bit11: PM2.5LowThresholdAlarm, Bit12: PM10HighThresholdAlarm, Bit13: PM10LowThresholdAlarm, Bit14: TVOCHighThresholdAlarm, Bit15: TVOCLowThresholdAlarm, Bit16: HCHOHighThresholdAlarm, Bit17: HCHOLowThresholdAlarm, Bit18:O3HighThresholdAlarm,

Bit19: O3LowThresholdAlarm, Bit20:COHighThresholdAlarm, Bit21: COLowThresholdAlarm, Bit22:H2SHighThresholdAlarm, Bit23:H2SLowThresholdAlarm, Bit24:NH3HighThresholdAlarm, Bit25:NH3LowThresholdAlarm,

Bit26-31:Reserved

Reserved (3Byte,fixed 0x00)

0x06

Battery (1Byte, unit:0.1V)

H2S

(2Bytes,Unit:0.01ppm)

NH3

(2Bytes,Unit:0.01ppm)

Reserved (3Byte,fixed 0x00)

Uplink

Data #1: 01A0019F097A151F020C01
- 1st byte (01): Version
- 2nd byte (A0): DeviceType 0xA0 － RA08B Series
- 3rd byte (01): ReportType
- 4th byte (9F): Battery－3.1V (Low Voltage) Battery=0x9F, binary=1001 1111, if bit 7= 1, it means low voltage.
  The actual voltage is 0001 1111 = 0x1F = 31, 31*0.1v =3.1v
- 5th 6th byte (097A): Temperature－24.26℃, 97A (Hex)= 2426 (Dec), 2426*0.01℃ = 24.26℃
- 7th 8th byte (151F): Humidity－54.07%, 151F (Hex) = 5407 (Dec), 5407*0.01% = 54.07%
- 9th 10th byte (020C): CO2－524ppm , 020C (Hex) = 524 (Dec), 524*1ppm = 524 ppm
- 11th byte (01): Occupy－ 1
Data #2 01A0029F0001870F000032
- 1st byte (01): Version
- 2nd byte (A0): DeviceType 0xA0 － RA08B Series
- 3rd byte (02): ReportType
- 4th byte (9F): Battery－3.1V (Low Voltage) Battery=0x9F, binary=1001 1111, if bit 7= 1, it means low voltage.
  The actual voltage is 0001 1111 = 0x1F = 31, 31*0.1v =3.1v
- 5th-8th byte (0001870F): Air Pressure－1001.11hPa, 001870F (Hex) = 100111 (Dec), 100111*0.01hPa = 1001.11hPa
- 9th-11th byte (000032): illuminance－50Lux, 000032 (Hex) = 50 (Dec), 50*1Lux = 50Lux

Data #3 01A0039FFFFFFFFF000007
- 1st byte (01): Version
- 2nd byte (A0): DeviceType 0xA0 － RA08B Series
- 3rd byte (03): ReportType
- 4th byte (9F): Battery－3.1V (Low Voltage) Battery=0x9F, binary=1001 1111, if bit 7= 1, it means low voltage.
  The actual voltage is 0001 1111 = 0x1F = 31, 31*0.1v =3.1V
- 5th-6th (FFFF): PM2.5 － NA ug/m3
- 7th-8th byte (FFFF): PM10 － NA ug/m3
- 9th-11th byte (000007): TVOC－7ppb, 000007 (Hex) = 7 (Dec), 7*1ppb = 7ppb
  Note: FFFF refers to unsupported detection item or errors.
Data #5 01A0059F00000001000000
- 1st byte (01): Version
- 2nd byte (A0): DeviceType 0xA0 － RA08B Series
- 3rd byte (05): ReportType
- 4th byte (9F): Battery－3.1V (Low Voltage) Battery=0x9F, binary=1001 1111, if bit 7= 1, it means low voltage.
  The actual voltage is 0001 1111 = 0x1F = 31, 31*0.1v =3.1v
- 5th-8th (00000001): ThresholdAlarm－1 = 00000001(binary), bit0 = 1 (TemperatureHighThresholdAlarm)
- 9th-11th byte (000000): Reserved

Data #6 01A0069F00030000000000
- 1st byte (01): Version
- 2nd byte (A0): DeviceType 0xA0 － RA08B Series
- 3rd byte (06): ReportType
- 4th byte (9F): Battery－3.1V (Low Voltage) Battery=0x9F, binary=1001 1111, if bit 7= 1, it means low voltage.
  The actual voltage is 0001 1111 = 0x1F = 31, 31*0.1v =3.1v
- 5th-6th (0003): H2S－0.03ppm, 3 (Hex) = 3 (Dec), 3* 0.01ppm = 0.03ppm
- 7th-8th (0000): NH3－0.00ppm
- 9th-11th byte (000000): Reserved

Example of ConfigureCmd

Description	Device	CmdID	DeviceType	NetvoxPayLoadData
Config ReportReq	RA08B Series	0x01	0xA0	MinTime (2bytes Unit:s)	MaxTime (2bytes Unit:s)	Reserved (2Bytes,Fixed 0x00)
Config ReportRsp		0x81		Status (0x00_success)	Reserved (8Bytes,Fixed 0x00)
ReadConfig ReportReq		0x02		Reserved (9Bytes,Fixed 0x00)
ReadConfig ReportRsp		0x82		MinTime (2bytes Unit:s)	MaxTime (2bytes Unit:s)	Reserved (2Bytes,Fixed 0x00)
Calibrate CO2Req		0x03		CalibrateType (1Byte, 0x01_TargetCalibrate, 0x02_ZeroCalibrate, 0x03_BackgroudCalibrate, 0x04_ABCCalibrate)	CalibratePoint (2Bytes,Unit:1ppm) Only valid in targetCalibrateType	Reserved (6Bytes,Fixed 0x00)
Calibrate CO2Rsp		0x83		Status (0x00_suA0ess)	Reserved (8Bytes,Fixed 0x00)
SetIRDisable TimeReq		0x04		IRDisableTime (2bytes Unit:s)	IRDectionTime (2bytes Unit:s)	Reserved (5Bytes,Fixed 0x00)
SetIRDisable TimeRsp		0x84		Status (0x00_success)	Reserved (8Bytes,Fixed 0x00)
GetIRDisable TimeReq		0x05		Reserved (9Bytes,Fixed 0x00)
GetIRDisable TimeRsp		0x85		IRDisableTime (2bytes Unit:s)	IRDectionTime (2bytes Unit:s)	Reserved (5Bytes,Fixed 0x00)

Configure device parameters
- MinTime = 1800s (0x0708), MaxTime = 1800s (0x0708)
- Downlink: 01A0070807080000000000
- Response:
  - 81A0000000000000000000 (Configuration success)
  - 81A0010000000000000000 (Configuration failure)

Read device configuration parameters
1. Downlink: 02A0000000000000000000
2. Response: 82A0070807080000000000 (Current configuration)

Calibrate CO2 sensor parameters
- Downlink:
  1. 03A00103E8000000000000 // Choose Target-calibrations (calibrate as the CO2 level reaches 1000ppm) (CO2 level could be configured)
  2. 03A0020000000000000000 //Choose Zero-calibrations (calibrate as the CO2 level is 0ppm)
  3. 03A0030000000000000000 //Choose Background-calibrations (calibrate as the CO2 level is 400ppm)
  4. 03A0040000000000000000 //Choose ABC-calibrations
    (Note: The device would auto-calibrate as it turns on. The interval of auto-calibration would be 8 days. The device shall be exposed to the environment with fresh air at least 1 time to ensure the accuracy of the results.)
- Response:
  - 83A0000000000000000000 (Configuration success) // (Target/Zero/Background/ABC-calibrations)
  - 83A0010000000000000000 (Configuration failure) // After calibration, the CO2 level exceeds the accuracy range.

SetIRDisableTimeReq
- Downlink: 04A0001E012C0000000000 // IRDisableTime: 0x001E=30s, IRDectionTime: 0x012C=300s
- Response: 84A0000000000000000000 (Current configuration)

GetIRDisableTimeReq
- Downlink: 05A0000000000000000000
- Response: 85A0001E012C0000000000 (Current configuration)

ReadBackUpData

Description	CmdID	PayLoad
ReadBackUpDataReq	0x01	Index (1Byte)
ReadBackUpDataRsp WithOutData	0x81	None
ReadBackUpDataRsp WithDataBlock	0x91	Temperature (Signed2Bytes, unit: 0.01°C)	Humidity (2Bytes, unit:0.01%)	CO2 (2Byte, 1ppm)	Occupy (1Byte 0:Un Occupy 1: Occupy)		illuminance (3Bytes, unit:1Lux)
ReadBackUpDataRsp WithDataBlock	0x92	AirPressure (4Bytes,unit:0.01hPa)		TVOC (3Bytes, Unit:1ppb)		Reserved (3Bytes,fixed 0x00)
ReadBackUpDataRsp WithDataBlock	0x93	PM2.5(2Bytes, Unit: 1 ug/m³)	PM10 (2Bytes, Unit:1ug/m³)	HCHO (2Bytes, unit:1ppb)	O3 (2Bytes, unit:0.1ppm)		CO (2Bytes, unit:0.1ppm)
ReadBackUpDataRsp WithDataBlock	0x94	H2S (2Bytes, unit:0.01ppm)	NH3 (2Bytes, unit:0.01ppm)	Reserved (6Bytes,fixed 0x00)

Uplink

Data #1 91099915BD01800100002E
- 1st byte (91): CmdID
- 2nd- 3rd byte (0999): Temperature1－24.57°C, 0999 (Hex) = 2457 (Dec), 2457 * 0.01°C = 24.57°C
- 4th-5th byte (15BD): Humidity－55.65%, 15BD (Hex) = 5565 (Dec), 5565 * 0.01% = 55.65%
- 6th-7th byte (0180): CO2－384ppm, 0180 (Hex) = 384 (Dec), 384 * 1ppm = 384ppm
- 8th byte (01): Occupy
- 9th-11th byte (00002E): illuminance1－46Lux, 00002E (Hex) = 46 (Dec), 46 * 1Lux = 46Lux

Data #2 9200018C4A000007000000
- 1st byte (92): CmdID
- 2nd- 5th byte (00018C4A): AirPressure－1014.50hPa, 00018C4A (Hex) = 101450 (Dec), 101450 * 0.01hPa = 1014.50hPa
- 6th-8th byte (000007): TVOC－7ppb, 000007(Hex)=7(Dec),7*1ppb=7ppb
- 9th-11th byte (000000): Reserved
Data #3 93FFFFFFFFFFFFFFFFFFFF
- 1st byte (93): CmdID
- 2nd- 3rdbyte (FFFF): PM2.5－FFFF(NA)
- 4th-5th byte (FFFF): PM10－FFFF(NA)
- 6th-7th byte (FFFF): HCHO－FFFF(NA)
- 8th-9th byte (FFFF): O3－FFFF(NA)
- 10th-11th byte (FFFF): CO－FFFF(NA)

Data #4 9400010000000000000000
- 1st byte (94): CmdID
- 2nd- 3rdbyte (0001): H2S－0.01ppm, 001(Hex) = 1 (Dec), 1* 0.01ppm = 0.01ppm
- 4th-5th byte (0000): NH3－0ppm
- 6th-11th byte (000000000000): Reserved

Example of GlobalCalibrateCmd

Description	CmdID	Sensor Type	PayLoad(Fix =9 Bytes)
SetGlobalCalibrateReq	0x01	See below	Channel (1Byte) 0_Channel1 1_Channel2, etc	Multiplier (2bytes, Unsigned)		Divisor (2bytes, Unsigned)	DeltValue (2bytes, Signed)		Reserved (2Bytes, Fixed 0x00)
SetGlobalCalibrateRsp	0x81		Channel (1Byte) 0_Channel1 1_Channel2,etc		Status (1Byte, 0x00_success)			Reserved (7Bytes,Fixed 0x00)
GetGlobalCalibrateReq	0x02		Channel (1Byte) 0_Channel1 1_Channel2,etc			Reserved (8Bytes,Fixed 0x00)
GetGlobalCalibrateRsp	0x82		Channel (1Byte) 0_Channel1 1_Channel2,etc	Multiplier (2bytes, Unsigned)		Divisor (2bytes, Unsigned)	DeltValue (2bytes, Signed)		Reserved (2Bytes, Fixed 0x00)
ClearGlobalCalibrateReq	0x03	Reserved 10Bytes,Fixed 0x00)
ClearGlobalCalibrateRsp	0x83	Status(1Byte,0x00_success)				Reserved (9Bytes,Fixed 0x00)

SensorType – byte

0x01_Temperature Sensor
0x02_Humidity Sensor
0x03_Light Sensor
0x06_CO2 Sensor
0x35_Air PressSensor

Channel – byte

0x00_ CO2
0x01_ Temperature
0x02_ Humidity
0x03_ Light
0x04_ Air press

SetGlobalCalibrateReq
Calibrate the RA08B Series CO2 sensor by increasing 100ppm.

SensorType: 0x06; Channel: 0x00; Multiplier: 0x0001; Divisor: 0x0001; DeltValue: 0x0064
Downlink: 0106000001000100640000
Response: 8106000000000000000000

Calibrate the RA08B Series CO2 sensor by decreasing 100ppm.

SensorType: 0x06; Channel: 0x00; Multiplier: 0x0001; Divisor: 0x0001; DeltValue: 0xFF9C
SetGlobalCalibrateReq:
- Downlink: 01060000010001FF9C0000
- Response: 8106000000000000000000

GetGlobalCalibrateReq

Downlink: 0206000000000000000000
Response:8206000001000100640000
Downlink: 0206000000000000000000
Response: 82060000010001FF9C0000

ClearGlobalCalibrateReq:

Downlink: 0300000000000000000000
Response: 8300000000000000000000

Set/GetSensorAlarmThresholdCmd

CmdDescriptor	CmdID (1Byte)	Payload (10Bytes)
SetSensorAlarm ThresholdReq	0x01	Channel(1Byte, 0x00_Channel1, 0x01_Channel2, 0x02_Channel3,etc)	SensorType (1Byte, 0x00_Disable ALL SensorthresholdSet 0x01_Temperature, 0x02_Humidity, 0x03_CO2, 0x04_AirPressure, 0x05_illuminance, 0x06_PM2.5, 0x07_PM10, 0x08_TVOC, 0x09_HCHO, 0x0A_O3 0x0B_CO, 0x17_ H2S, 0X18_ NH3,		SensorHighThreshold (4Bytes,Unit:same as reportdata in fport6, 0Xffffffff_DISALBLE rHighThreshold)		SensorLowThreshold (4Bytes,Unit:same as reportdata in fport6, 0Xffffffff_DISALBLEr HighThreshold)
SetSensorAlarm ThresholdRsp	0x81	Status (0x00_success)	Reserved (9Bytes,Fixed 0x00)
GetSensorAlarm ThresholdReq	0x02	Channel(1Byte, 0x00_Channel1, 0x01_Channel2, 0x02_Channel3,etc)		SensorType (1Byte,Same as the SetSensorAlarmThresholdReq’s SensorType)		Reserved (8Bytes,Fixed 0x00)
GetSensorAlarm ThresholdRsp	0x82	Channel(1Byte, 0x00_Channel1, 0x01_Channel2, 0x02_Channel3,etc)	SensorType (1Byte,Same as the SetSensorAlarmThresholdReq’s SensorType)		SensorHighThreshold (4Bytes,Unit:same as reportdata in fport6, 0Xffffffff_DISALBLE rHighThreshold)		SensorLowThreshold (4Bytes,Unit:same as reportdata in fport6, 0Xffffffff_DISALBLEr HighThreshold)

Default: Channel = 0x00 (cannot be configured)

Set the temperature HighThreshold as 40.05℃ and LowThreshold as 10.05℃
- SetSensorAlarmThresholdReq: (when the temperature is higher than the HighThreshold or lower than the LowThreshold, the device would upload reporttype = 0x05)
- Downlink: 01000100000FA5000003ED
  - 0FA5 (Hex) = 4005 (Dec), 4005*0.01°C = 40.05°C,
  - 03ED (Hex) = 1005 (Dec), 1005*0.01°C = 10.05°C
- Response: 810001000000000000000000
GetSensorAlarmThresholdReq
- Downlink: 0200010000000000000000
- Response:82000100000FA5000003ED
Disable all sensor thresholds. (Configure the Sensor Type to 0)
- Downlink: 0100000000000000000000
- Device returns: 8100000000000000000000

Set/GetNetvoxLoRaWANRejoinCmd
(To check if the device is still in the network. If the device is disconnected, it will automatically rejoin back to the network.)

CmdDescriptor	CmdID(1Byte)	Payload(5Bytes)
SetNetvoxLoRaWANRejoinReq	0x01	RejoinCheckPeriod(4Bytes,Unit:1s 0XFFFFFFFF Disable NetvoxLoRaWANRejoinFunction)	RejoinThreshold(1Byte)
SetNetvoxLoRaWANRejoinRsp	0x81	Status(1Byte,0x00_success)	Reserved (4Bytes,Fixed 0x00)
GetNetvoxLoRaWANRejoinReq	0x02	Reserved (5Bytes,Fixed 0x00)
GetNetvoxLoRaWANRejoinRsp	0x82	RejoinCheckPeriod(4Bytes,Unit:1s)	RejoinThreshold(1Byte)

Note:

Set RejoinCheckThreshold as 0xFFFFFFFF to stop the device from rejoining the network.
The last configuration would be kept as users reset the device back to the factory setting.
Default setting: RejoinCheckPeriod = 2 (hr) and RejoinThreshold = 3 (times)

Configure device parameters
- RejoinCheckPeriod = 60min (0x00000E10), RejoinThreshold = 3 times (0x03)
- Downlink: 0100000E1003
- Response:
  - 810000000000 (configuration success)
  - 810100000000 (configuration fail)
Read configuration
- Downlink: 020000000000
- Response: 8200000E1003

Information about Battery Passivation

Many of Netvox devices are powered by 3.6V ER14505 Li-SOCl2 (lithium-thionyl chloride) batteries that offer many advantages including low self-discharge rate and high energy density. However, primary lithium batteries like Li-SOCl2 batteries will form a passivation layer as a reaction between the lithium anode and thionyl chloride if they are in storage for a long time or if the storage temperature is too high. This lithium chloride layer prevents rapid self-discharge caused by continuous reaction between lithium and thionyl chloride, but battery passivation may also lead to voltage delay when the batteries are put into operation, and our devices may not work correctly in this situation. As a result, please make sure to source batteries from reliable vendors, and it is suggested that if the storage period is more than one month from the date of battery production, all the batteries should be activated. If encountering the situation of battery passivation, users can activate the battery to eliminate the battery hysteresis.
ER14505 Battery Passivation:

To determine whether a battery requires activation
Connect a new ER14505 battery to a resistor in parallel, and check the voltage of the circuit.
If the voltage is below 3.3V, it means the battery requires activation.

How to activate the battery

Connect a battery to a resistor in parallel
Keep the connection for 5~8 minutes
The voltage of the circuit should be ≧3.3, indicating successful activation.

Brand Load Resistance Activation Time Activation Current

NHTONE 165 Ω 5 minutes 20mA

RAMWAY 67 Ω 8 minutes 50mA

EVE 67 Ω 8 minutes 50mA

SAFT 67 Ω 8 minutes 50mA

Battery activation time, activation current, and load resistance may vary due to the manufacturers. Users should follow the manufacturer’s instructions before activating the battery.

Note:

Please do not disassemble the device unless it is required to replace the batteries.
Do not move the waterproof gasket, LED indicator light, and function keys when replacing the batteries.
Please use a suitable screwdriver to tighten the screws. If using an electric screwdriver, user should set the torque as 4kgf to ensure the device is impermeable.
Please do not dissemble the device with little understanding of the device’s internal structure.
The waterproof membrane stops liquid water from passing into the device. However, it does not contain a water vapor barrier. To prevent water vapor from condensing, the device should not be used in an environment that is highly humid or full of vapor.

CO2 Sensor Calibration

Target Calibration
Target concentration calibration assumes that sensor is put into a target environment with a known CO2 concentration. A target concentration value must be written to Target calibration register.

Zero Calibration

Zero-calibrations are the most accurate recalibration routine and are not at all affected performance-wise by having an available pressure sensor on host for accurate pressure-compensated references.
A zero-ppm environment is most easily created by flushing the optical cell of the sensor module and filling up an encapsulating enclosure with nitrogen gas, N2, displacing all previous air volume concentrations. Another less reliable or accurate zero reference point can be created by scrubbing an airflow using e.g. Soda lime.

Background Calibration
A “fresh air” baseline environment is by default 400ppm at normal ambient atmospheric pressure by sea level. It can be referenced in a crude way by placing the sensor in direct proximity to outdoor air, free of combustion sources and human presence, preferably during either by open window or fresh air inlets or similar. Calibration gas by exactly 400ppm can be purchased and used.

ABC Calibration

The Automatic Baseline Correction algorithm is a proprietary Senseair method for referencing to “fresh air” as the lowest, but required stable, CO2-equivalent internal signal the sensor has measured during a set time period.
This time period by default is 180hrs and can be changed by the host, it’s recommended to be something like an 8 day period as to catch low-occupancy and other lower-emission time periods and favourable outdoor wind-directions and similar which can plausibly and routinely expose the sensor to the most true fresh air environment.
If such an environment can never be expected to occur, either by sensor locality or ever-presence of CO2 emission sources, or exposure to even lower concentrations than the natural fresh air baseline, then ABC recalibration can’t be used.
In each new measurement period, the sensor will compare it to the stored one at the ABC parameters registers, and if new values show a lower CO2-equivalent raw signal while also in a stable environment, the reference is updated with these new values.
The ABC algorithm also has a limit on how much it is allowed to change the baseline correction offset with, per each ABC cycle, meaning that self-calibrating to adjust to bigger drifts or signal changes may take more than one ABC cycle.

Important Maintenance Instructions

Kindly pay attention to the following in order to achieve the best maintenance of the product:

Do not put the device near or submerge into water. Minerals in rain, moisture, and other liquids could cause corrosion of electronic components. Please dry the device, if it gets wet.
Do not use or store the device in dusty or dirty environments to prevent damage to parts and electronic components.
Do not store the device in high temperatures. This may shorten the lifespan of electronic components, damage batteries, and deform plastic parts.
Do not store the device in cold temperatures. Moisture may damage circuit boards as the temperatures rise.
Do not throw or cause other unnecessary shocks to the device. This may damage internal circuits and delicate components.
Do not clean the device with strong chemicals, detergents, or strong detergents.
Do not apply the device with paint. This may block detachable parts and cause malfunction.
Do not dispose of batteries in fire to prevent explosion.
The instructions are applied to your device, battery, and accessories. If any device is not working properly or has been damaged, please send it to the nearest authorized service provider for service.

Documents / Resources

netvox RA08B Wireless Multi Sensor Device [pdf] User Manual
RA08B Wireless Multi Sensor Device, RA08B, Wireless Multi Sensor Device, Multi Sensor Device, Sensor Device, Device

References

User Manual

netvox RA08B Wireless Multi Sensor Device

Specifications

Product Usage Instructions

Frequently Asked Questions (FAQ)

Introduction

Appearance

Features

Set-up Instruction

Data Report

Uplink

Set/GetSensorAlarmThresholdCmd

Information about Battery Passivation

CO2 Sensor Calibration

Important Maintenance Instructions

Documents / Resources

References

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Very good	< 150 ppm
Good	150-500 ppm
Medium	500-1500 ppm
Poor	1500-5000 ppm
Bad	> 5000 ppm

Brand	Load Resistance	Activation Time	Activation Current
NHTONE	165 Ω	5 minutes	20mA
RAMWAY	67 Ω	8 minutes	50mA
EVE	67 Ω	8 minutes	50mA
SAFT	67 Ω	8 minutes	50mA