I/O expansion

I/O expansion add-ons are meant to increase GPIO capabilities. One example is a relay, it acts as a GPIO expansion for a GNSS tracker by allowing the tracker’s low-power output signals to control high-power vehicle systems like the engine, fuel pump, or siren. This enables remote actions such as engine immobilization or alarm activation without directly handling heavy electrical loads. It's a safe and flexible way to extend the tracker’s control capabilities.