The ST3940 (with its holder) is a water resistant (IP66 compliant) rugged, hard-cased multi-purpose mini 3G tracking device for a variety of uses such as asset tracking, vehicle/motorcycle tracking and personal tracking. The ST3940 works autonomously by using its own built-in battery(1500mA, 3000mA) and its superior internal antennas for both of 3G network and GPS.

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- Network: GSM, UMTS
- Extremely low power consumption
- Low battery alert
- Built-in 3-axis accelerometer and motion detector
- Maintenance Server Supported (optional)
- Waterproof Compliant: IP66 (with holder), IP65 (without holder)

Asset Tracker 3G
Specification ST3940
Network Frequency 3G: 3G: 850/1900 MHz, 2G: 850/1900 MHz
3G: 900 / 2100 Mhz, 2G: 900 / 1800 MHz (Optional)
GPRS Multi-slot Class 12
Support all 4 coding schemes (CS-1, CS-2, CS-3 and CS-4)
Transmission Protocol TCP / UDP
Setting mode By PC, GPRS or SMS
Command / Report sent via SMS MT/MO PDU / Text mode, SMS over SG/NAS
Back-up Server Supported (via dual IP)
GPS/Glonass Sensitivity *3) Tracking -167 dBm
Reacquisition -161 dBm
Cold start -149 dBm
Housing Dimension 50.5(W) × 75(L) ×32.5(T) mm (3,000mAh)
50.5(W) × 75(L) ×22.5(T) mm (1,500mAh)
Weight 113g (With 3,000mAh)
81g (With 1,500mAh)
Dust and Water Resistant IP65
Power Supply with Li-ion rechargeable battery
User Interface Power button, Panic button
Charger adaptor, Charger cable
LED Status Indicator GPS signal, 3G/2G signal, Battery Charging status
Power Consumption Active mode : 40~60mA
Sleep mode : Approx. 3.5mA
Deep Sleep mode : Approx. 15uA
Antenna Type Internal 4G/2G antenna, Internal GPS antenna
Motion Detection Built-in 3-axis accelerometer
Battery Rechargeable 3.7V, 3000mAh Li-ion Battery
Operational Temperature Range -20˚C ~ +60˚C
Certificates CE, RoHS