overview: T-Z AVL03 is a device that use the Global Positioning System to get the precise location of a vehicle,truck ,trailer or other asset inwhich AVL03 has been installed and it canrecord the position of your vehicles at regular intervals. With Sirf Star III GPS systems, it records not only position, but also include velocity,Date time, direction, status of digital output ports, etc. The main purpose of using AVL is not only to locate the vehicles, but also to obtain information about the status of doors, windows and ignition, etc. Or remotely monitor cutting off gas and power supply, etc.l Application Field: 1. Support 3-frequency GSM 900/1800/1900 MHZ. Fleeting management 4-frequency GSM 850/900/1800/1900 MHZ Acquire the location and trace of every vehicle at anytime.Send command to drivers of any vehicle. 2. vehicle security,anti-theft Dial up the default telephone number,preset by the owner such as some policeman ,when thevehicle is in danger such as being robbed . Main Features: 1. Acquire the location of the vehicles and tracking vehicle real time. The location of vehicle sent to your cell phone or to the control center once per second. 2. Record the trace of vehicle.The trace of vehicle can be recordedto the memory card. 3. Realtime communication with any telephone. 4. Emgergency alert.ASK help when in risk or in dangerous . 5. Remote control by owner.Authorized owner can control vehicle by send messages to terminal. Following messages is supported:shut down power,close door,close windows,etc 6. Self cheecking.Checking states of terminal,such as GPS antenna connectivity,etc. Specification Feature Characteristics Dimension 110mm*66mm*27mm Exterior Power Supply DC 12V -- 24V Inner lithium battery DC 3.8V -- 4.2V Exterior GSM antenna Receive GSM signal better Exterior GPS antenna Receive GPS signal better Power Consumption when exterior voltage is 12V Active mode(avg.) 100mASleep mode 5mA Operating Temperature Range -20 to +60 Air pressure 860Kpa --1060Kpa Humidity Up to 75% non-codensing Position accuracy 10 --15 meters GSM chip Simcom, support 4 frequency GSM 850/ 900/1800 /1900MHZ GPS chip Sirf-Star III(super-sensitivity and high accuracy ) Tremble Intensity Build-in LED 3 LEDs indicates GSM, GPS signal, and trembling status Button(not in the basic version) 2 buttons, report location, quick dial (optional)