Key specifications/special features
* GSM band: 900/1800 mhz,850/1900mhz
* GPRS: Class 12 UDP/IP built-in GSM module
* GPS: U-Blox7020
* Chipset: MTK62600
* GPS channel: 50 channel
* GPS sensitivity: -160dBm
* GPS antenna: external high gain ceramic patch antenna
* GSM antenna: external GSM antenna
* Accuracy: 10m (2drm)
* Voltage range: 12 V-24V
* Battery capacity : 3.7V 500mAh Li-ion battery
* Sensor: vibrating sensor
* Tracking time: hot 2 (open sky). Warm 15sec, Cold 38 sec
* Measurement: 81.8mmx35.7mmx60.3mm