With Oil Gauge Sensor function GPS orientation, Works worldwide! � High sensitivity, High stability GPS SiRF-Star III chipset! � High stability GSM module, Support EGSM900M/DCS1800M/PCS 1900M � No need external antenna; Just turn on the power and ready to use. � Support setting 3 authorized cell phone numbers. Each phone number can receive SMS depends the setup. � Support 4 Input switch function(including SOS) � Support 4 output switch function � Support microphone can be used for monitoring � 3 LEDs show GPS, GSM, Power ***** � One Mini USB port , using setting PC software � Can provide GPS status, Coordinate, Speed, Date and Time, alert type in one SMS message. � Support exceeding restricted area range warning � Support over speed limit warning � Update coordinate at regular time � No GPS signal warning. � Low power warning � Geo Fence IN/OUT warning � GPRS Auto Stop warning � The GPS module will be restarted every 48H for avoiding the GPS module death. � The GSM module will be restarted every 48H and GSM signal will be checked every 60Mins, if it is no GSM signal, the GSM module will be restarting for avoiding the GSM death. � Tow warning � Wire Harness with SOS and fuse � Vibration Alarm � Background voicesurveillance � Support Google earth, 51 etc .GIS electronic Map � Support SMS Message Setting (refer :SMS Instruction) Size: 124mm*66mm*27mm Weight: 210g Accessories: GPS Atenna; GSM Atenna; CD;Wire Harness with SOS and fuse