Doc. Title
ST940 User Manual
Features and how to configure ST940
2-1. GSM/GPRS Specifications
Rechargeable 3.7V, Li-ion Battery- 1500mAh
Built-in 3-axis Acceleration sensor
Standby time
Standby Time with GSM “On/Off”
Standby Time with GSM “On”
*with 1,500mA/h Li-ion battery
less than 8uA
Report once a day: 400days
3 minute reporting: 114 hours
5 minute reporting: 162 hours
10 minute reporting: 235 hours
30 minute reporting: 335 hours
*The measurements were made only under good GPS and
GPRS signals.
GSM 850 / EGSM 900MHz -104dBm
DCS1800 / PCS1900MHz -102dBm
-20°C ~ +60°C
*Caution !
Please pay a careful attention that the vehicle shall NOT be left
under direct sunlight for long time in hot weather. There is a risk
of battery explosion at hot temperature.
Power Button, SOS Button,
Charger Adaptor, Charger & Setting Cable
GPRS, GPS, Charging status
Multi-slot Class 12
Support all 4 coding schemes
(CS-1, CS-2, CS-3 and CS-4)
50.5(W) x 75(L) x 22.5(T) mm
55.9(W) x88.3(L) x 35.6(T) mm (with cradle)