logistics management simple GPS tracker with overspeed alarm

fleet management simple function GPS Tracking device--AVL02   Applications: Vehicle Tracking Vehicle Security/Recover/Anti-hijacking Mobile Asset Tracking Location-based Services Fleet Management: car, taxi, bus, truck etc.  Description: Internal Polymer Lithium Ion Battery in the AVL Support mini USB port to update firmware Tracking by time interval via GPRS or SMS Over-speed alarm Geo-fence alarm Low power alarm Support single location and continual tracking Can Real-time tracking your vehicle via map on PC GPRS function, receiving position data and alarm data on Server Anti-theft alarm, support alarm when someone tremble your car once you park it and send an alarm report to you via SMS or GPRS data Remotely check the status of the windows or doors close/open, through the 2 switch I/O sockets, and remotely control the status of ignition through the 1 digital I/O socket   SOS button send out exact location for immediate rescue. After user press SOS button in the AVL, AVL unit will send out the location and SOS alarm to the preset number via SMS or a server via GPRS With 16M memory, which can store about 8000 PCS data. When GPRS is lose connection, those data will be store and send when GPRS connection is recover. Calculate the odometer of the car from the GPRS data. Detect the car of the fuel.  Special and Unique: Support downlink commands from Server to device via GPRS Support sending GPRS data to IP or DNS Mileage calculation function With Flash Memory function Fuel/oil level detection (optional)   Specifications:

Feature	Characteristics
Dimension	108mm*58mm*28mm
N.W	140g
Exterior Power Supply	DC 12V – 24V
Inner lithium battery	DC 3.7V
Standby time	About 72 hours
Work  time	About 12 hours
Exterior GSM antenna	Receive GSM signal better
Exterior GPS antenna	Receive GPS signal better
Operating Temperature Range	-20°C to +60°C
Air pressure	860Kpa –1060Kpa
Humidity	Up to 75% non-codensing
Position accuracy	10 –15 meters
GSM chip	support 4 frequency GSM 850/900/1800 /1900MHZ
GPS chip	Ublox (super-sensitivity and high accuracy )
Hot start	1 sec, average
Warm start	38 sec, average
Cold start	42 sec, average
LED	3 LEDs indicates GSM signal, GPS signal, power on and GSM module.
Button(not in the basic version)	1 buttons, report location
I/O Port	1 switch input, 2 digital input , 1 digital output, 1 analog input

              Top selling GPS tracker AVL02 ,best price and high quality ~~