Introduction
We are pleased to announce that we've made some improvements on VT310,pls check below :

1> With outside sim card slot,no need to unscrew the outside shell again when insert the sim card
2> Easier to configure the GPRS Tracking System,no need to press SOS key when configure the parameters
3> For Voice Surveillance,with outside hole for microphone directly pl ed in. 
 
Main Features
- Tracking via SMS or GPRS
- Show location picture directly on mobile phone
- Current location report
- Tracking by time interval
- Position logging capacity up to 260,000+ waypoints
- Built-in motion sensor for powe saving
- Emergency alert
- Geo-fencing control 
- Low battery alert
- Speeding alert
- Wiretapping
- Alert when enter/exit GPS blind area
- I/O: 5 digital inputs, 3 negative and 2 positive triggering; 5 outputs. 
- Analog Input: 2 analog inputs of 10 bits resolution for connecting fuel level sensor or  other sensors.
- Power-cut alarm   

 Parameter