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The performance parameter | ||||||
GSM master chip | MT2502D | G-Sensor | QMA6981 | |||
GSM frequency support | 850/900/1800/1900 | The heart rate sensor | Days are core3313 | |||
Built-in ROM size | 32Mb | Temperature sensor | CT1711 | |||
Built-in RAM size | 32Mb | Charging voltage | 5V | |||
GPS chip | Built-in | Working voltage | 3.4-4.2V | |||
Beidou chip | Built-in | The average standby current | Less than 3mA | |||
GPRS | Class12 | The average working current | About 55mA | |||
BD2 , 1561.098MHz/L1, 1575.42MHz C/A code | ||||||
GPS channel number | 22 channel | Working humidity | 5%~95% is not set | |||
AGPS fast positioning time | Cold start for 26 seconds | GPS antenna | Built-in high sensitivity ceramic antenna | |||
Beidou /GPS chip reception sensitivity | Track: -165dBm, capture: -148dBm | GSM antenna | Built-in antenna | |||
Beidou /GPS positioning accuracy | 5-15 meters | Charging time | 2 hours | |||
LBS base station positioning accuracy | 100-1000 meters | Charging current | 470mA | |||
Functions | ||||||
1. Real time tracking /GPS+LBS+Wifi | 6. Sedentary/ Drink water reminder | |||||
2. Two way communication | 7. Heart-rate/Blood pressure | |||||
3. Remote voice monitor | 8. History track playback | |||||
4. SOS for help | 9. Low power alarm | |||||
5. Remote Control-Geo fence | 10.Temperature measurement | |||||










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