Complaint
| Model | TW4 |
| 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 | |
| Communication mode | TCP/IP |
| Body memory | |
| 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 | UC6228CI |
| Positioning mode | GPS+BD+LBS+WiFi |
| 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 | DC 5V/600mA(type-c) |
| Working current | 59.4mA/H |
| Quiescent current | 8.6mA |
| battery | 57*35*19mm³ 1200mAh 75*45*21mm³ 3000mAh 75*46*31mm³ 6000mAh 85*61*31mm³ 10000mAh |
| Continuous working time | |
| Continuous stationary battery life | |
| Storage capacity of blind spot track points | 300 |
| Operating temperature | -20°C to+60°C |
| Working humidity | -40ºC~+85ºC |
| Dimensions | TW4M 56*34*19mm³ 1200mAh TW4S 74*44*21mm³ 3000mAh TW4L 74*45*30mm³ 6000mAh TW4P 83*59*30mm³ 10000mAh |
| weight | TW4M 56*34*19mm³ 49g TW4S 74*44*21mm³ 102g TW4L 74*45*30mm³ 151g TW4P 83*59*30mm³ 230g |
