... VoltageDC:6.3~40VInput Fuse2AWorking Temperature-40~85°CHumidity10% to 90%CPUTI:MSP430F149(16MHz)GSM Module:Tri-mode:850 ... cable ,GPS antenna ,GSM antenna, Engine controller, SOS button, MicrophonePorts:RES: Reset Button1: DC(12V) 2: None3: GND4: ACC(12V ... different types of GPS Tracker for different purposes.3) Due to Noran advanced technology, strict quality control management & competitive price, ...