Car GPS tracker VT310 
-Track by SMS/GPRS 
-SOS Alarm,Geo-fence Alarm 
-External Power Cut Alarm 
-Engine Cut 

 1.Main Features:

1. Tracking via SMS or GPRS (TCP/UDP)
2. Current location report
3. Tracking by time interval
4. Position logging capacity up to 260,000+ waypoints
5. Built-in motion sensor for power saving
6. SOS panic button
7. Geo-fencing control
8. Low battery alert
9. Speeding alert
10. Engine Cut
11. Listen-in (optional)
12. Alert when tracker enters/exits GPS blind area
13. Alert when tracker is turned on
14. I/O: 5 digital inputs, 3 negative and 2 positive triggering; 5 outputs.
15. Analog Input: 2 10 bits resolution analog inputs
16. Work with GPS tracking software LiveGTS

2. Parameters:

Power Supply:                  DC 9~35V/ 1.5A

Backup Battery:               850mAh
Dimension:                      104mm x 62mm x 24mm
Installation Dimension:   104mm x 83mm x 24mm
Humidity:                         5% to 95% Non-condensing
Frequency:                      GSM 900/1800/1900Mhz or GSM 850/900/1800/1900Mhz
GPS Module:                    latest GPS SIRF-Star III chipset
GPS Sensitivity:               -158Db
GPS Frequency:               L1, 1575.42 MHz
C/A Code:                       1.023 MHz chip rate
GPS receive Channels:    20 channels all-in-view tracking
Position Accuracy:           10 meters, 2D RMS
Velocity Accuracy:            0.1 m/s
Time Accuracy:                 1 us synchronized to GPS time
Default datum:                WGS-84
Reacquisition:                  0.1 sec., average
Hot start:                        1 sec., average
Warm start:                     38 sec., average
Cold start:                       42 sec., average
Altitude Limit:                  18,000 meters (60,000 feet) max.
Velocity Limit:                  515 meters/second (1000 knots) max.
LED:                                2 LED lights to show GPS/GSM working status.
Flash Memory:                 8MB
Interface:                        5 digital inputs, 3 negative and 2 positive triggering; 2 analog inputs;5 outputs.
Analog Input:                  2 10 bits resolution analog inputs (2 analog port for optional accessory temperature sensor, weight sensor ,  tank fuel level sensor, seat pressure sensor)