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Working voltage 9-90VDC GPRS Protocol Class12
GF21 GPS tracker is a small
Centralized facility or location where data from various telematics devices is collected
More importantly
1300mAh big battery for long last time
GPS Safety Helmet Frequency:4G Working voltage 9-90VDC GPRS ProtocolGPS helmet is a specially designed and engineered GPS tracking device with safety helmet combined. It is widely used in construction sites, like roads and bridges, electric power, iron towers, industrial and mining, etc. The advantage of GPS safety helmet is it does not only provide safety to head, but also give the management a monitor of the workers working at remote areas. In case of any emergency, instant help can be offered to reduce loss and
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