GPS AVL Tracker with 3 Comports and Analog Input (JAVA)

VT-850UA is a versatile and economical platform for mobile positioning applications. It integrates UniTraQ GPS module, Simcom 340 Quad-band 850/900/1800/1900GSM/GPRS communication module and powerful microcontroller all onto a single board.
It is enclosed in a solid casing for easy installation. VT-850UA provides reliable Real Time vehicle GPS positions anytime anywhere in the world, providing the correct position and status of vehicles from remote locations onto computer displayed maps. Benefits such as increased fleet efficiency, improved public and driver safety, better emergency response time, enhanced fleet control, and good public relations are all realized through the proper implementation of VT-850UA system.
The VT-850UA system takes advantage of JAVA machine to transmit NMEA message to 24-hrs
Control Center by Packet-Switch for monitoring through either GPRS or SMS massage system. Control center sets command by sending commands for monitoring through GSM system or Internet access.

Features
*Supports Quad band 850/900/1800/1900 MHZ operation
*JAVA platform
*Java MIDP_2.0 virtual machine for easy and fast application development
*GPRS multi-slot class 10 and mobile station class B
*Integrated TCP/IP stacks
*SMS transfer via GSM/GPRS
*Remote control via SMS
*Real-time GPS tracking
*Real-time vehicle status monitoring
*Dual data communication capability through GPRS and SMS
*Supports speaker and microphone interface
*3 Bi-directional digital IO ports with voltage protected up to 40V
*3 analog inputs used for measuring external voltages.
*RS232 port on the VT-850UA can be extended to three physical RS232 ports via UniTraQ’s Comport extended cable.

*Power supply and low battery detection acknowledge
*Built-in 1100mAh Recharge battery
*4 LED indicators for power, battery charger in progress, GSM/GPRS and GPS status