gps tracker for vehicles

Environmental Specification:
Operation Temperature: -20?C to +70?C
Storage Temperature:-30?C to +85?C
Operating Humidity: 5% to 95%

Power Specification:
Backup Battery: Built-in Rechargeable Battery
Power Voltage: DC 9V-55V

GPS/GPRS Specification:
SOS Button :Driver can press SOS button for emergency
General :L1 1575.42MHz, C/A code, 20 Parallel Channels
Sensitivity: -143 dBm 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:(1)Cold start: < 60sec average(2)Warm start: < 45sec average(3)Hot start: < 15sec average
Antenna: External GSM and GPS Antenna
Dimensions: 125.0mm*70.0mm*24.0mm

GPRS function:
Positioning function: After the GPS implements satellite positioning, it sends the data such as longitude & latitude, speed and azimuth of the target to the monitoring center. This function can be implemented through Google Earth with the support of an appropriate software system.
Hijack alarm: In case of danger, push the button hidden in the steering room, and the vehicle-mounted system will send alarm signals to the monitoring center until a response is received from the monitoring center.
Tracking: The monitoring center can track the vehicle which raises the alarm after the vehicle is stolen or robbed.
Remote flameout: In the process of rescuing the hijacked vehicle, the monitoring center can extinguish the vehicle remotely by force as required. The system provides double safety, and device fault will not cause accidental flameout.
Authorized wiretapping: The vehicle can be wiretapped as authorized (a tiny microphone needs to be installed).
Internal flash memory: When the 800B is disconnected to the system (for example, the GPRS signal is weak), the position data will be storing in the flash, and then it will upload again after it reconnect to the system (the GPRS signal is ok).

SMS function:
Position Report Function and Tracking Function.
2 outputs can be used to remote cut electricity and oil of the car.
3 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, 800B will send one SOS SMS to the SOS preset number.
Over speed alarm: When the 800B speed higher than the preset value, 800B will send one over speed alarm SMS to the SOS preset number.
Set Geo-fence alarm. When the 800B move out preset scope, 800B will send one Geo-fence SMS to the SOS preset number.

FEATURES:
Connecting to external GPS antenna, internal Sirf 20 Channels High Sensitive GPS module
Four-Band GSM 850/900/1800/1900
SMS/GPRS communication channels

gps car tracker , web-based tracking platform