Wrist GPS/GSM/GPRS Tracker wholesale china

-GPS/GSM/GPRS mini tracker with SOS button
-Showing the location map directly on any mobile without install any software.
-With high accuracy remote location tracking device
-With compact GPS and GSM modules
-Transmits the SMS message of longitude, latitude and location link to cell phone
-Suitable for locate children, elders, pets, vehichles, yacht and vessel.
Features:
-GSM /SMS communication or GPRS TCP/UDP connection. Support 850/900/1800/1900 MHz (compatible)
-20 channels high sensitivity GPS Module
-Compact size, easy to hide and smaller than a name card.
-In case of emergency, "Help" message with location will be send to all preset phone numbers
-Geo-fencing to restrict movement to a defined radius
-Very Low power consumption, Standby time is more than 35 hours
-Fast Signal Acquisition
-Support single location reporting and continuous tracking
-Support remote monitoring
-Support check location by SMS and Internet
-Device Size: 49x16x39mm
-Weight: 50g