GSM module: GSM900 / 1800 / 1900MHz
GPS sensitivity: -159dBm
GPS center frequency: L1, 1575.42MHz
GPS positioning accuracy: 2-25 meters
GSM positioning accuracy: 100-500 meters
Speed accuracy: 0.1 m / s
Operating temperature: -40 --- 85 ℃
Humidity: 5% --- 95%
Size: 78mm * 45mm * 25mm
Voltage: Rechargeable 5000mAh battery (3.7V)
Power: DC5V charging circuit
Standby time: more than 30 days

The main functions of this machine:

1.Positioning and monitoring function: Globally, continuously monitor targets in real time, and realize 24-hour positioning monitoring with a positioning accuracy of 5-20 meters.
2. Electronic fence function: After setting the restricted area, when the target exits or enters the restricted area, the positioning terminal will alert the preset authorization number or the monitoring center, and return the target's latitude, longitude, speed, and other data to the control center .
3. Emergency alarm function: When an emergency situation is encountered, the emergency help button can be used to send a help signal to a preset authorized number or monitoring center, and return target positioning data.
4. Overspeed alarm function: After setting the speed limit on the tracker, the tracker will automatically alert the preset authorization number or monitoring center and return the target position, speed and other information when the speed is over.
5. Mobile alarm function: After setting the tracker to the state of mobile alarm, when the moving range exceeds 200 meters (settable), the tracker will automatically alarm to the preset authorized number or monitoring center and return the target Position, speed, and more.
6. Low power alarm function: When the tracker is low power, it will automatically alarm to the preset authorized number or monitoring center and upload the location.