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| Model | TO4S |
| GSM specifications | |
| GSM chip | SIMCOM-A7670SA |
| GSM channel | LTE-FDD:B1/B2/B3/B4/B5/B7/B8/B28/B66 GSM/GPRS/EDGE 850/900/1800/1900MHz |
| GPRS class | Class 12,TCP/IP |
| Communication mode | TCP/IP |
| Body memory | 128Mb |
| Phase error | -5°~5° |
| Maximum output | EGSM900:33dBm±2dB/5dBm±5dB DCS1800:30dBm±2dB/0dBm±5dB EGSM900 (8-PSK):27dBm±3dB/5dBm±5dB DCS1800 (8-PSK):26dBm±3dB/0dBm±5dB LTE-FDD B1/B3/B5/B8:23dBm±2dB/<-39dBm LTE-TDD B34/B38/B39/B40/B41:23dBm±2dB/<-39dBm |
| Maximum frequency error | ±0.1ppm |
| GPS specifications | |
| GPS chipset | AT6558R |
| Positioning mode | GPS+BD+LBS |
| frequency | L1,1575.42Mhz C/A code |
| Number of channels | 72 |
| Positioning accuracy | <10 meters |
| Tracking sensitivity | -160 dbm |
| Capture sensitivity | -158 dbm |
| Positioning time | Avg.hot start <2s Avg.warm Start <28s Avg.cold start <38s |
| Working parameters | |
| Operating voltage range | 12-36V |
| Working current | 50mA(12V)/40mA(24V) |
| Quiescent current | 5mA |
| battery | 100mAh |
| Continuous working time | 3h |
| Continuous stationary battery life | 17h |
| Storage capacity of blind spot track points | 500 |
| Operating temperature | -20°C to+60°C |
| Working humidity | -40ºC~+85ºC |
| Dimensions | L49mm*W38.6mm*H33.4mm |
| weight | 42g |





