Features: Internal gps and gsm antenna Distance driving Engine operation time Zone management Route management Speed limit Idling time and over stopping Change course reporting Specifications: Dimension:91 x 65 x 28 mm Weight, :100 g Enclosure:abs plastic ip rating, ip62 Voltage, :10-35v dc Power::, 160ma (active) 70ma (sleep) Temperature, :-30℃  to +70℃ Humidity, :5~90% Modem, :cinterion mc55i: 850/900/1800/1900 mhz Ublox leon:850/900/1800/1900 mhz Siemens mc45: 900/1800/1900 mhz Antenna:, internal Receiver, :ublox (gps, galilieo&sbase) engine Channels:, 50 parallel channels Position accuracy, autonomous: