... tracker:1. Sirf3 GPS module (20 channels)2. Support GSM/GPRS (850/900/1800/1900MHz)3. Inbuilt Backup Battery (200~850mAH)4 ... ~85°CHumidity10% to 90%CPUTI:MSP430F149(16MHz)GSM Module:Tri-mode:850/900/1800/1900MHzTally with: GSM phase 2/2+-Class 4 (2W ... is about 3.5 hours)Accessoriesdevice, Connecting cable ,GPS antenna ,GSM antenna, Engine controller, SOS button, MicrophonePorts:RES: Reset Button1: DC ...