I. Brief IntroductionTLT-1C GPS/GSM is a car remote positioning and tracking device produced based on GPS technology and GSM/GPRS technology. It receives the latitude and longitude of the user's location through cell phone messages and then locates the tracker on Google Map or other digital map software; or positioning data is uploaded by the tracker to the specified server through GPRS, and the user may search the real-time position and historical track of the tracker on the internet.
II. Product characteristics
1. Built-in high-performance GPS chipset enables the product to provide accurate positioning in the event of weak signal and to work normally in urban areas, valleys or other sight-limited districts.
2. Built-in GSM/GPRS model supports GSM900/1800MHz (850/1900 MHz), thus it can work throughout the world.
3. It supports SMS communications or GPRS TCP connection, and receives position information through cell phone message or used to look into movement track on the internet.
4. It provides such functions as SOS, fuel cutoff/power failure, warning by cutting off external power wire, geo-fence, overspeed warning, historical data upload, parking throttle upload and moving car tracking timing upload.
5. It provides voice call function (connected with earphone)
6. It is equipped with highly reliable electric circuit and complies with electronic industry standards.
III. Product use
1. Specifications
II. Product characteristics
1. Built-in high-performance GPS chipset enables the product to provide accurate positioning in the event of weak signal and to work normally in urban areas, valleys or other sight-limited districts.
2. Built-in GSM/GPRS model supports GSM900/1800MHz (850/1900 MHz), thus it can work throughout the world.
3. It supports SMS communications or GPRS TCP connection, and receives position information through cell phone message or used to look into movement track on the internet.
4. It provides such functions as SOS, fuel cutoff/power failure, warning by cutting off external power wire, geo-fence, overspeed warning, historical data upload, parking throttle upload and moving car tracking timing upload.
5. It provides voice call function (connected with earphone)
6. It is equipped with highly reliable electric circuit and complies with electronic industry standards.
III. Product use
1. Specifications
| Hardware | Parameter |
| GSM module | MTK GSM/GPRS chipsetGSM 900/1800 double frequency , orGSM 900/1800/850/1900 four frequency (optional)Supports TCP protocol |
| GPS chip | GPS chip set with high sensitivity |
| GPS sensitivity | -160dBm |
| GPS frequency | L1,1575.42MHz |
| Code | C/A Code |
| Channel | 50-channel, omnibearing tracking |
| Position accuracy | <2.5m,CEP |
| Speed accuracy | 0.1m/s |
| Time accuracy | 1us and synchronous with GPS time |
| Coordinates | WGS-84 |
| Reacquisition | 0.1s on average |
| Hot start | 1s on average |
| Warm start | 30s on average |
| Cold start | 32s on average |
| Altitude Limit | Maximum 18,000 meter (60,000 feet) |
| Velocity limit | Maximum 515m/s (1000 knot) |
| Acceleration Speed limit | Less than 4g |
| Working temperature | -25℃to 70℃ |
| Humidity | 5%~95% non-concretion |
| Dimension | 94mm×53mm×26mm |
| Voltage | 12-24V |
2. LED status description
2.1 Green LED ---- GPS status indicator
| Status | Description |
| Off | GPS unavailable |
| Quick flash | GPS available |
2.2 Blue LED ---- GSM status indicator
| Status | Description |
| Quick flash | No SIM card or GSM network |
| Flash once every 8s | GSM works normally |
2.3 Red LED ---- charge indicator
| Status | Description |
| Normal light | Under charging |
| Weak light | Charging completed |
IV. Product accessories
1. TLT-1C GPS/GSM Car Tracker
2. Power wire
3. GPS/GSM antenna
4. Earphone
5. Battery
6. Instruction manual (CD)
