Physical specifications: Dimensions 84mm x 53mm x 20mm Weight ~88 grams without internal battery Temperature Operates in -30°C to + 65°C Antennas Internal omni-directional GSM Internal omni-directional GPS GSM/GPRS Core: Frequencies 900/1800/1900 Protocols GPRS class 10, SMS Certifications CE, GCF, RoHS Power: Supply Voltage 11V to 30V Battery Optional internal LiIon battery Output Power Class 4 (2W) - EGSM 900 Class 2 (1W) - GSM 1800/1900 Interfaces & sensors: Power supply Plug-in SIM socket Internal, behind battery door 3 LEDs Power, GSM status, GPS status Serial port Tx, Rx Inputs/Outputs 2 digital inputs, 2 analog or digital inputs, 4 outputs |