Our products are tracking device based on the GSM / GPRS / (WCDMA) network and GPS satellite positioning system, which set multiple functions of security, positioning, monitoring surveillance, emergency alarms and tracking. They can track and monitor remote target by SMS or internet.
This model(403AB) is designed for vehicles. And it reports high risk status according to door lock, engine and shock. after you received the message, you can cut the fuel and electriciry off through SMS or Internet. With 403B you can operate through a remote controller, which is the difference between 403A and 403B. 2G and 4G network.