You can connect any external hardware type that are compatible with the "RS485" interface of Eagle GPS tracker, if you need know that external components can connect to Eagle model, contact with Digital Matter Telematics company. For locate Digital Matter Telematics Eagle device, you can select 3 different GPS tracking modes: (sending text messages with commands via SMS, using Digital Matter Telematics online server, from an external tracking management platform). Eagle NB / IoT GPS tracker is compatible with the (Bluetooth 5) connectivity, thanks to that Digital Matter Telematics integrated an internal Bluetooth module, through these function you can connect via Bluetooth: (BLE tags, universal BLE sensors, etc...). Digital Matter Telematics Eagle is a highly recommended option for GPS asset tracking requirements, Eagle can working on "standalone GPS tracker" mode using 4 alkaline batteries or can connect directly to mobile asset/vehicle power source. Digital Matter Telematics has designed the plastic housing of Eagle NB / IoT GPS tracker with (IP67 - waterproof) certification, you can continue working on your mobile asset tracking control in extreme weather conditions without fear that Eagle stop to work.