Special Features:
1. Bulit in 4500MAh battery ,can longtime standby 3 months
2. Low power alarm
3. High temeperature alarm
4. Can set different send data interval when low power

1. Temperature monitoring
2. LBS information

Dimension: 122mm*81mm*30.8mm
Exterior Power Supply: DC 9V -- 36V
USB charge: 5V
Inner lithium battery: DC 3.6V -- 4.2V/4500mah
Power Consumption when exterior voltage is 12V: Active mode(avg.) < 50mA         Sleep mode     < 5mA
Charging time: About 6 hours can be full
Standby Time: More than 3 months
Air pressure: 860Kpa --1060Kpa
Humidity: Up to 75% non-condensing
GSM chip: Ublox M35 ( 4 Frequency GSM 850/ 900/1800 /1900MHZ is optional)
LED: 3 LEDs indicates GSM signal,alarm, and charge power