Car GPS Tracker car auto with SOS Alarm, and SMS Function tracking system

GPS tracker and T300BFeatures:T30C,T30E,T300C,T300E can support platform TS610Connecting to external GPS antenna, internal Sirf 20 channels high sensitive GPS module Quad Band GSM 850/900/1800/1900 SMS function Position report function and tracking function2 outputs can be used to remote cut electricity and oil of the car3 inputs can be used to detect unconventionality of your vehicle SOS alarm: set a preset phone number for SOS button, when this button is pressed, T300B will send one SOS SMS to the SOS preset numberOver speed alarm: when the T300B speed higher than the preset value,T300B will send one over speed alarm SMS to the SOS preset numberAuthorized wiretapping: the vehicle can be wiretapped as authorized (a tiny microphone needs to be installed)GPS/GSM specification:SOS button: driver can press SOS button for emergency General: L1 1575.42MHz, C/A code, and 20 parallel channels Sensitivity: -143dBm minimum Accuracy position: 10m CEP without S/A Velocity: 0.1 m/sec without S/A WAAS accuracy position: 5m CEP Velocity: 0.05m/sec Acquisition:Cold start: less than 60s averageWarm start: less than 45s averageHot start: less than 15s averageAntenna: external GSM and GPS antenna Dimensions: 125.0 x 70.0 x 24.0mmPower specification:Backup battery: built-in rechargeable battery Power voltage: DC 9V-55VEnvironmental specification: Operation temperature: -20?C to +70?C Storage temperature :-30?C to +85?C Operating humidity: 5% to 95%