Product Overview
The MiCODUS MV750G is a 4G GPS tracker designed for vehicle location monitoring and security. It supports dual connectivity (2G/4G), multi-satellite positioning (GPS+BDS+GLONASS), and offers features like remote fuel cut-off, real-time tracking, historical route playback, and various alarm notifications.
The device is compact and rugged, featuring IP67 waterproofing for durability in various environmental conditions. It is powered by a 3.7V 140mAh internal polymer battery and can operate with an external power supply ranging from 9-95V DC.
1. Main Features
- 2G+4G Connectivity: Supports both 2G GSM/GPRS and 4G LTE CAT1 networks for broad coverage.
- GPS+BDS+GLONASS Positioning: Utilizes multiple satellite systems for accurate and reliable location tracking.
- Remote Fuel Cut-off/Resume: Allows for remote disabling or enabling of the vehicle's fuel supply via SMS commands.
- Real-time Tracking: Provides live location updates on a monitoring platform.
- Historical Route Playback: Enables review of past travel routes.
- Vibration Alarm: Triggers an alert when the device detects vibration, typically when stationary.
- IP67 Waterproof: Designed to withstand dust and water immersion.
- Remote Door Lock & Unlock: Capability to remotely lock or unlock vehicle doors (requires compatible accessories).
- Anti-Jammer Functionality: Detects and reports signal jamming attempts.
- Geo-fencing: Allows users to set virtual geographical boundaries and receive alerts when the device enters or leaves these areas.
- Ignition On/Off Alarm: Notifies users when the vehicle's ignition is turned on or off.
- Battery Low Voltage Alarm: Alerts when the device's internal battery or the vehicle's battery voltage drops below a set threshold.
- Overspeed Alarm: Generates an alert when the vehicle exceeds a predefined speed limit.
- Open Door Alarm: Notifies when a vehicle door is opened.
- Door Status Detection: Monitors and reports the status of vehicle doors.
- Buzzer Alarm: Provides audible alerts for various events.
2. Specifications
| Category | Details | MV750G |
|---|---|---|
| Device Information | Model | MV750G |
| Weight | 47.6g | |
| Dimensions | 90.8(L) * 28mm(W) * 16mm(H) | |
| Battery | Built-in 3.7V 140mAh Polymer Battery | |
| Working Parameters | Working Voltage | 9-95V DC |
| Working Current | 12V/Average 30mA | |
| Sleep Current | 12V/Average 8mA | |
| Working Temperature | -20°C - 75°C | |
| Working Humidity | 10%-85%RH | |
| Cellular Specifications | Built-in Memory | 1500pcs GPS data can be stored at network blind area |
| SIM Card | Nano SIM | |
| Cellular Antenna | Built-in, FPC | |
| Communication Module | QUECTEL EG915 | |
| GNSS Specifications | Working Frequency | 2G GSM/GPRS: 850/900/1800/1900MHz 4G LTE CAT1: B1/B2/B3/B4/B5/B7/B8/B28/B66 |
| Positioning Module | Zhongke Microelectronics AT6558R | |
| GNSS | GPS+BDS+GLONASS | |
| GPS Frequency | L1: 1575.42±1.023MHz | |
| BDS Frequency | B1:1561.098±2.046MHz | |
| Satellite Channels | 32 | |
| External Interface | Hot/Cold Start | <1s, <32s @ Open Sky |
| GNSS Antenna | Built-in Ceramics GNSS Antenna, 25mm*25mm*4mm | |
| Positioning Type | GNSS+BDS+LBS+AGPS | |
| Accuracy | Location accuracy: <10m (1σ) Timing accuracy: <30ns (1σ) Speed accuracy: <0.1m/s (1σ) |
|
| Inputs/Outputs | ACC Detection Input Cut-off Fuel/Electric Circuit SOS Remotely Lock/Unlock Door Door Status Detection |
1 ACC detection line 1 Low output line (relay control line) 1 Low detection line (SOS alarm line) 1 Low detection line 1 Digital input |
3. Getting Online
Step 1: SIM Card Requirements
To get the tracker online, a suitable SIM card is required. It must meet the following criteria:
- Compatible with 4G LTE or 2G GSM networks.
- SMS, call, and internet data traffic enabled.
- Caller ID display feature enabled.
- PIN code removed.
- Micro size SIM card recommended.
Consult your SIM card provider for the correct APN information.
Step 2: SIM Card Installation
Insert the SIM card into the designated slot in the device. It is recommended to close the cover only after the device is successfully connected online.
4. Wiring
Connect the tracker according to the wiring diagram:
- Green Wire: Door Status Detection
- Blue Wire: SOS
- Orange Wire: ACC (Accessory)
- Yellow Wire: Ignition Key
- Red Wire: VIN (Positive Power Supply)
- Black Wire: GND (Ground)
The diagram also shows connections for a relay, pump, buzzer 1, buzzer 2, and door lock/unlock mechanisms. The device can be connected to buzzers and door lock/unlock actuators.
Important Note: Ensure the tracker is connected to an external power source of at least 12V for proper operation after SIM card installation.
5. APN Configuration
Configure the Access Point Name (APN) using SMS commands. Obtain the correct APN from your SIM card provider. Move the tracker to an area with good signal strength before configuring.
| SMS Command Format | Reply | Example | Note |
|---|---|---|---|
APN,ApnName,User,Password# |
SET APN OK | APN,orange,orange,orange# |
Use if the SIM card has APN username and password. |
APN,ApnName# |
SET APN OK | APN,internet# |
Use if the SIM card operator does not have APN username and password. |
Note: APN information must be 100% accurate for the tracker to get online. An incorrect APN may result in a "SET APN ok" reply but prevent online connectivity.
6. Indicator Status
| LED | Event | State |
|---|---|---|
| CELL LED (YELLOW) | Searching for network | Flash every 1 second |
| Network has been registered | Solid | |
| GPS LED (BLUE) | GPS is in fixing | Flash every 1 second |
| GPS has fixed | Solid | |
| ALL LED | Device is working but stopped more than 5min | |
| Device has not been turn on | ALL LED TURN OFF | |
| Device ran out of battery | ALL LED TURN OFF |
7. Package Contents
- GPS Main Unit x 1
- Function Cable x 1
- Bezzer (Optional) x 1
- SOS Button Cable (Optional) x 1
- Relay (Optional) x 1
- User Guide x 1
- Genuine Packing Box x 1
8. Functions Explanation
a. Cut Off Fuel/Resume Fuel
Set Center Number: Use SMS command: CENTER,password,A,center number#
Execute Fuel Control: Send SMS command from the center number: RELAY,A#
Where A is:
- 0: Resume Fuel
- 1: Cut Off Fuel Immediately
- 2: Cut Off Fuel Safely
Example: To set the center number: CENTER,888888,A,+8612345678910#. To cut off fuel: RELAY,1#.
b. Vibration Alert
This function works when the device is stationary. To use it:
- Configure SOS Numbers:
SOS,A,1st number,2nd number,3rd number#(supports up to 3 numbers). - Enable Arm Mode:
ARM# - Configure Alarm Ways:
SENALM,[A][,M]#A: ON/OFF (default: OFF)M: Way of alarming (0: GPRS only, 1: SMS+GPRS, 2: GPRS+SMS+phone call, default: 1)
Keep the device stationary for over 5 minutes to enter sleep arm mode. Vibrating the device will trigger alarm messages.
Example: Set SOS number: SOS,A,12345678910#. Enable arm mode: ARM#. Configure alarm: SENALM,ON,1#.
c. Open Door Alarm
Command Format: DOORALM,A,M#
A: ON/OFF (default: ON)M: Way of alarming (0: GPRS only, 1: SMS+GPRS, 2: SMS+GPRS+Call, default: 1)
Example: DOORALM,ON,1# sends an alarm message via SMS and server when the door opens.
d. Engine Start and Flameout Alarm
Command Format: ACCALM,A,B,M#
A: ON/OFF (Default: ON)B: 0/1/2 (0: ACC ON Alarm; 1: ACC OFF Alarm; 2: ACC ON&OFF Alarm; Default: 2)M: Way of alarm (0: Server only, 1: SMS+Server, 2: SMS+Server+Call, Default: 1)
Example: ACCALM,ON,2,1# alerts via server and SMS when the engine starts or stops.
9. Installation Recommendation
Placement Guidelines:
- The device should face upwards towards the sky for optimal GNSS signal reception.
- Avoid placing it behind metal thermal barriers, such as those found in heated windshields, as this can significantly affect the signal.
Recommended Locations:
- On a Car: Under the front windshield, inside the door pedal, around the dashboard, under the rear windshield, inside the head light, inside the front cover, inside the taillight component or plastic, under the pedal.
- On a Scooter: Inside the front cover, under the pedal.
10. Troubleshooting
| Issue | Troubleshooting Steps |
|---|---|
| Unable to connect to tracking platform | Check APN and settings. Verify SIM card data service is enabled. Check SIM card balance. |
| Tracker shows offline | Ensure external power is connected. Check if the vehicle is in a network blind area. Check SIM card balance. |
| Unable to locate | Ensure the top side faces upward and is not shielded by metallic objects. Verify the device is not in an area with no satellite coverage. |
| Location drift | In areas with poor GNSS signals (e.g., tall buildings, basements), drifting may occur. Check if vibration triggers the accelerator. |
| No command reply | Confirm the command format is correct. The vehicle might be in a network blind area. Ensure the SIM card is properly inserted and has SMS service. |
11. SMS Commands List
Setting Commands
| Function | Command Format | Explanation |
|---|---|---|
| APN Setting | APN,Network name[,name,password]# |
APN,CMNET# (if no name/password); APN,internet,internet,internet# (if with name/password) |
| Server Setting | If set with Domain Name: SERVER,1,Domain,Port#If set with IP: SERVER,0,IP,Port# |
SERVER,1,d.micodus.net,7700#SERVER,0,47.254.77.28,7700# |
| Check IMEI | IMEI# |
DEVICE IMEI No. : 0123456789 |
| Change IMEI | IMEICHG,354188046912460# |
NEW IMEI No. : 354188046912460 |
| Restore factory settings | FACTORY# |
RESTORE FACTORY SETTINGS OK |
| Restart device | RESTART# |
RESTARTING...1 MINUTE WILL BE OK |
| Internet Traffic Switch | TRAFFIC,ON# / TRAFFIC,OFF# |
OPEN TRAFFIC OK / CLOSE TRAFFIC OK |
| Time Zone Setting | GMT,A,B,C# |
Example: GMT,E,8# (East +8 zone); GMT,W,9,30# (West -9.5 zone). A: E/W, B: 0-12, C: 0/15/30/45. |
| Set the angle upload | ANGLEREP,X,A,B# / ANGLEREP,OFF# |
Example: ANGLEREP,ON,30,3#. X=ON/OFF, A=5-180 degrees, B=2-5 seconds. CANCEL UPLOAD ANGLE OK. |
| Mileage Statistics | MILEAGE,A,B# / MIELEAGE# |
Example: MILEAGE,ON,5000#. A=ON/OFF, B=0-999999 (initial value). Query current mileage. |
| Add SOS Administrator Number | SOS,A,1st number,2nd number,3rd number# |
Set multiple numbers or individually. Example: SOS,A,13800138000,13800138001,13800138002# |
| Delete SOS Administrator Number | SOS,D,1st number,2nd number,3rd number# or SOS,D,1,2,3# |
Directly delete number or delete by index. Example: SOS,D,13800138000# or SOS,D,1# |
| Add Center Number | CENTER,password,A,center number# |
Example: CENTER,888888,A,+8613800138000#. Include country code. |
| Delete Center Number | CENTER,password,D# |
Example: CENTER,888888,D# |
| Data Upload Time Interval | TIMER,T1,T2# |
Example: TIMER,5,180#. T1: ACC ON interval (0/5-18000s), T2: ACC OFF interval (0/5-18000s). |
| Heartbeat Packet Upload | HBT,time# |
Example: HBT,3#. Sets heartbeat interval (1-60min, default 3min). |
| Sensor Sensitivity | LEVEL,A# |
Example: LEVEL,2#. Sets sensitivity level (1-9, 1=weak, 9=strong vibration). |
| Arm manually | ARM# |
Set the device into arm mode. |
| Disarm manually | DISARM# |
Set the device out of arm mode. |
| Data Upload Time Zone Setting | DATAGMT,Time zone orientation,Whole Time Zone[,Half Time Zone]# |
Example: DATAGMT,E,8# or DATAGMT,W,9,30#. Parameter: E/W, 0-12, 0/15/30/45. |
| Set the instruction password | PWD,password,ON# / PWD,password,OFF# |
Enable/Cancel instruction password successfully. |
| Change the instruction password | PWDCHG,[A],[B]# |
A=old password, B=new password (6 digits each). |
| Reset password | RSTPWD,A# |
A=ID Number of the device. |
| Enable Buzzer | BUZZER,ON,A# |
Example: BUZZER,ON,10#. A=Ringing duration (0-3600s). |
| Lock Door | LOCKDOOR# |
Lock door successfully! |
| Unlock Door | UNLOCKDOOR# |
Unlock door successfully! |
| Pulse Times for Unlock Door | PULSE,A# |
Example: PULSE,1#. A=Pulse frequency (1-5). |
| Cut Off / Resume Fuel | RELAY,A# |
A=1/2. 1: Enable relay immediately. 2: Enable relay safely (speed dependent). |
| Signal Jamming Cut-off Fuel | SIGJAMCUT,A,M# |
Example: SIGJAMCUT,ON,1#. A=ON/OFF, M=1/2 (Cut-off Immediately/Safely). |
| Inquiry sigjamcut function status | SIGJAMCUT# |
SIGJAMCUT:OFF |
Alarm Commands
| Function | Command Format | Explanation |
|---|---|---|
| Open Door Alarm Setting | DOORALM,A,M# / DOORALM,OFF# |
Example: DOORALM,ON,1#. A=ON/OFF, M=0/1/2 (alarm way). CANCEL OPEN DOOR ALARM OK. |
| Signal Jamming Alarm | SIGJAMALM,A,M# / SIGJAMALM,OFF# |
Example: SIGJAMALM,ON,1#. A=ON/OFF, M=0/1/2 (alarm way). CANCEL SIGJAMALM OK. |
| SOS Alarm | SOSALM,A,M# / SOSALM,OFF# |
Example: SOSALM,ON,1#. A=ON/OFF, M=0/1/2 (alarm way). CANCEL SOS ALARM OK. |
| Buzzer Alarm Setting | BUZZERALM,A,B# / BUZZERALM,OFF# |
Example: BUZZERALM,ON,10#. A=ON/OFF, B=Ringing duration (0-3600s). CANCEL SOS ALARM OK. |
| Overspeed Alarm Setting | SPEED,A,B,M# / SPEED,OFF# |
Example: SPEED,ON,100,1#. A=ON/OFF, B=Speed limit (1-255 km/h), M=0/1/2 (alarm way). CANCEL OVERSPEED ALARM OK. |
| Vibration Alarm Setting | SENALM,A,M# / SENALM,OFF# |
Example: SENALM,ON,2#. A=ON/OFF, M=0/1/2 (alarm way). CANCEL VIBRATE ALARM OK. |
| Shift Alarm Setting | SHIFT,A,B,M# / SHIFT,OFF# |
Example: SHIFT,ON,300,1#. A=ON/OFF, B=Shift Distance (100-9999m), M=0/1/2 (alarm way). CANCEL SHIFT ALARM OK. |
| Auto Arm By ACC | ACCARM,ON,M# / ACCARM,OFF# |
Example: ACCARM,ON,60#. M=Arm Time (5-1800s). Close auto arm function. |
| ACC Status Change Alarm | ACCALM,A,B,M# / ACCALM,OFF# |
Example: ACCALM,ON,2,2#. A=ON/OFF, B=0/1/2 (ACC ON/OFF/ON&OFF), M=0/1/2 (alarm way). Cancel ACC alarm function. |
| Power Disconnect Alarm | PWRALM,A,M# / PWRALM,OFF# |
Example: PWRALM,ON,1#. A=ON/OFF, M=0/1/2 (alarm way). Close power disconnect alarm. |
| Low Voltage Alarm Setting | LVALM,A,B,M# / LVALM,OFF# |
Example: LVALM,ON,11.2V,1#. A=ON/OFF, B=Low voltage threshold (9-95V), M=0/1/2 (alarm way). CANCEL LOW VOLTAGE ALARM OK. |
12. Inquiry Commands
| Function | Command Format | Explanation |
|---|---|---|
| Version Inquiry | VERSION# |
Returns device ID, IMEI, ICCID, and firmware version. |
| Parameter Inquiry | PARAM# |
Returns device parameters like IMEI, APN, IP, Timer, Speed Limit, Center Number, etc. |
| Latitude&Longitude Inquiry | WHERE# |
Returns current location data (LAT, LON, Course, Speed, Datetime). |
| Map URL Inquiry | URL# |
Returns a Google Maps URL for the device's current location. |
| Address Inquiry | POSITION# |
Provides location information, potentially including a Google Maps link if position content fails. |
| Status Inquiry | STATUS# |
Provides detailed status including Battery, Internet connection, Network signal, GPS status, Speed, ACC, Relay, Power, Sensor, and Device State (Arm/Disarm). |
| Alarms Parameters | ALARM# |
Returns a summary of all alarm statuses and configurations. |
13. Support and Downloads
Any Questions?
For assistance, please contact:
- Email: support@micodus.com
- Skype: MiCODUS
Download the APP
Search for "MiCODUS" in the iOS App Store or Google Play Store to download the MiCODUS APP.
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