Introduction
Thank you for choosing the SinoTrack ST-907 Car GPS Tracker. This device is designed to provide reliable real-time tracking, anti-theft monitoring, and remote control capabilities for your vehicle. This manual will guide you through the installation, setup, and operation of your new GPS tracker.
Key Features
- Relay GPS Tracker
- Mini size for easy concealment
- Main power off alarm
- Geo-fence alarm & Over speed alarm
- Suitable for Vehicle/Motorcycle/Truck
- Quad Band 850/900/1800/1900Mhz
- Built-in high sensitivity GPS & GSM antenna
- GPS/GPRS/GSM/SMS Positioning and Tracking
- SMS tracking on cellphone with Google Maps link
- Connect external relay to control vehicle oil and circuit (optional)
- Internet Connected
- No screen
- Battery Life: 1 To 4 Hours
- Out Power: 0.02W
- Voltage: 12 V
- GPS Module: Yes
- GPS type: GPS Tracker
- Certification: CE
Package Contents
- SinoTrack ST-907 GPS Tracker (Relay device)
- Wiring harness
- User Manual (this document)
Setup & Installation
1. SIM Card Installation
The device requires a Normal SIM card without a PIN code. Micro SIM and Nano SIM are also supported with an adapter.
- Open the top cover of the tracker by screw.
- Properly insert the GSM SIM card. The tracker will start and connect to an external power supply.

2. GPS Antenna Placement
The GPS antenna side should face the clear sky. Avoid placing it under metal; glass and plastic covers are acceptable.
3. Wiring Connection
Connect the wires as shown in the diagram below. It is recommended to find a professional repair technician or a 4S store to install the device.


4. Initial Device Activation
Place the device outdoors for approximately 30 seconds. The LED lights will remain lit when the device is working normally.
Operation
1. Online Tracking Platform
Access the online tracking platform via web browser or mobile application.
- Website: www.sinotrackpro.com
- Mobile App: Search for 'SinoTrack PRO' on App Store (iOS) or Google Play (Android).
- Login with Server: SinoTrackPRO, User: Your device's ID number, Password: 123456 (change after first login).


2. SMS Commands
The ST-907 supports both SMS and GPRS working modes. For SMS commands, send messages to the device's SIM card number.
Set Control Number
Command: [Mobile Number][Password] [Serial Number] (Example: 139504434650000 1). The device will reply 'SET OK'.
Working Mode Selection
- SMS Mode:
700+Password(Example:7000000). For mobile control and Google location links. - GPRS Mode (Default):
710+Password(Example:7100000). For real-time online tracking.
Change Password
Command: 777+New Password+Old password (Example: 77712340000).
Get Location (Google Link)
Command: 669+password (Example: 6690000). The device will send a Google Maps link. Alternatively, call the device's SIM card number to receive a location link.
Change Time Zone
Command: 896+password+E/W+HH (Example: 8960000E00). E for East, W for West, HH for hours offset.
Geo-Fence Setup
- Open Geo Fence:
211+password(Example:2110000). - Close Geo Fence:
210+password(Example:2100000). - Set Geo Fence:
0050000 1000(Example:[Center Latitude][Center Longitude] [Radius in meters]). Recommended radius > 1000 meters.
Over Speed Alarm
Command: 122+password+Blank+XXX (Example: 1220000 120). XXX is speed in KM/H (0-999). 0 closes the alarm.
Mileage Management
- Set Initial Mileage:
142+Password+M+X(Example:1420000M1000). X is mileage in meters. - Read Current Mileage:
143+password(Example:1430000).
Shock Alarm
- Open Shock Alarm:
181+password+T(Example:1810000T10). T is shocking time in seconds (0-120). - Close Shock Alarm:
180+password(Example:1800000).
Low Battery Alarm
The device automatically sends a low battery alarm SMS to the first control number when battery level drops to 20% (Bat:1).
Call Mode
- Call Mode On:
150+password(Example:1500000). Alarms will call and send SMS. - Call Mode Off:
151+password(Example:1510000). Only SMS alarms will be sent.
Remote Engine Cut-off
- Cut Engine:
940+password(Example:9400000). - Recover Engine:
941+password(Example:9410000).
Set APN
- Command 1 (no user/pass):
803+password+Blank+APN(Example:8030000 CMNET). - Command 2 (with user/pass):
803+password+Blank+ APN+Blank+ APN_user+Blank+ APN_pass(Example:8030000 CMNET CMNET CMNET).
Set IP and Port
Command: 804+password+Blank+IP+Blank+Port (Example: 8040000 45.112.204.246 8090).
Set Time Interval
Command: 805+password+Blank+T (Example: 8050000 20). T is interval in seconds (10-18000). T=0 closes GPRS.
Sleep Mode
- Command:
SLEEP+password+Blank+T(Example:SLEEP0000 5). Tracker sleeps when vehicle stops for 5 minutes. - To disable sleep mode:
SLEEP0000 0.
LED Status Indicators
| LED | Status | Meaning |
|---|---|---|
| Blue LED (GPS) | Flashing | No GPS Signal or GPS starting |
| ON | GPS OK | |
| Orange LED (GSM) | Flashing | No SIM card or GSM starting |
| ON | GSM OK |
Specifications
| Attribute | Value |
|---|---|
| Model Name | ST-907 |
| Brand Name | SinoTrack |
| GPS type | GPS Tracker |
| Special Features | Internet Connected |
| Screen Size | No screen |
| Voltage | 12 V |
| Out Power | 0.02W |
| Battery Life | 1 To 4 Hours |
| GPS Module | Yes |
| Origin | Mainland China |
| Certification | CE |
| High-concerned chemical | None |
Troubleshooting / Frequently Asked Questions

- Q: Why is the device offline?
A: Check device settings by sendingRCONFcommand. Verify APN, IP, Port, and ID are correct. Ensure the SIM card has credit and a data plan. - Q: Why does the device not send SMS commands?
A: Check if the SIM card has credit. Ensure it's a GSM SIM card. - Q: Can I change the IMEI?
A: For 2G/3G versions, you can change IMEI using the commandIMEI#[15-digit IMEI]#(Example:IMEI#123456789078532#). For 4G versions, IMEI change is not supported. - Q: What is the APN?
A: APN (Access Point Name) is provided by your SIM card operator. You can check with them or refer to http://www.unlockit.co.nz/mobilesettings/. - Q: Does the SIM card require a data plan?
A: Yes, for online tracking (GPRS mode), a data plan is required. For SMS commands, only SMS credit is needed. - Q: Does it support 4G?
A: The device supports Quad Band 850/900/1800/1900Mhz, which is typically 2G GSM. For 4G support, please check the specific model version. - Q: How much internet data is used per month?
A: Approximately 50-100MB/month.
User Tips
- For fleet managers, a free group account can be created to monitor multiple devices simultaneously on one app/web interface.
- If you are in countries like Pakistan, Chile, Colombia, Turkey, Azerbaijan, or Indonesia, be aware of IMEI registration/change requirements upon receiving the product to ensure functionality.
- Always ensure your SIM card has sufficient credit and a data plan for optimal tracking performance.
Support
For any questions regarding usage, installation, or configuration, please refer to this manual or contact SinoTrack customer support.
A detailed User Manual (PDF) can be found at: https://manuals.plus/m/12e2a7d591b1a25eade657806917be24b76c2ac61e779adae467c223aaf3393f





