Complaint
| Items | Parameters |
| GSM Module | MT2503D |
| GSM Frequency | 850/900/1800/1900 MHZ |
| LBS Positioning Accuracy | 100-500m |
| GSM Antenna | Built-in |
| GPS Chipset | MT 2503D |
| GPS Sensitivity | -159 dBm |
| GPS Frequency | L1, 1575.42 MHZ |
| Channels | 35 channels examine track |
| GPS Positioning Accuracy | 5-10m, 2D RMS |
| GPS Antenna | Built-in |
| Speed Accuracy | 0.1m/s |
| Time Accuracy | Synchronize with GPS |
| GPS Data | WGS-84 |
| Hot Start | <1s |
| Warm Start | <38s |
| Max Altitude | 18000m |
| Max Speed | 515m/s |
| Gravity Acceleration | <4g |
| Working Voltage | 9VDC~36VDC |
| Working Current | 10mA~25mA |
| Operating Temperature | -25ºC-75ºC |
| Humidity | 5%-95% |
| Size | L78.5mm *W23mm*H12mm |
| Simcard | Micro simcard |
| Battery | Rechargeable lithium polymer battery 50mAh/3.7V |
| Internal battery Standby | >30 minutes |
