The GPS monitor watch uses GPS module:CRT G591,which is -164dBm tracking.

 Comprising of GSM/GPS function,being capable of working under extreme temperature and humidity conditions.

SOS Alarm function,it should send a alarm message to SMS center and GPS center meanwhile dial the alarm  phone which is preset in watch in case of emergency.

Call theree telephone number which is preset in the watch.

128*128 OLED screen can display clear and sharp message.It can show Latitude,Longitude,Speed,Date and Time.

It should be tracked and monitored by the controller