Our GPS units are designed for long-term monitoring of assets which does not have its own power source or for vehicles which are often changed and the portability of the GPS device is key feature. All functions are same, the difference is just the size of the unit and battery capacity. Battery life depends on the preselected time interval. Selection of the right device is based on what asset you need to track and how often you need the information. All devices carry IP65 and contains GPS and GSM modul, 3D G sensor, temperature sensor, air pressure sensor and rechargeable battery.