Bluetooth Box BT02 Adapter (adapter only) for compatible GCIT series and EM series MPPT solar charge controllers Key benefits Add wireless monitoring to compatible MPPT controllers for convenient system status checks from a smartphone. Monitor battery and charging parameters in real time over Bluetooth within a typical range of 20 meters. Support for multiple battery chemistries and adjustable load control modes makes the adapter suitable for diverse small to medium solar systems. Main features Bluetooth monitoring: Connects to Android and iOS devices for mobile monitoring and basic configuration. Communication range: Up to 20 m in unobstructed conditions for convenient local monitoring. Battery compatibility: Supports lead acid types including sealed, GEL AGM, and flooded batteries; supports lithium chemistries such as LiFePO4 and LiNiCoMnO2; also supports user defined battery settings. Load control: Provides four load control modes, including manual mode and light control, to match common load management needs and help optimize energy use. Purpose: Bluetooth Box BT02 is an adapter only. It requires a compatible MPPT solar charge controller with the appropriate adapter interface. Technical and usage notes Designed to pair with compatible MPPT controllers that accept the BT02 adapter. Confirm controller model compatibility before . Intended for local Bluetooth monitoring and configuration. Does not include a solar charge controller, battery, or wiring accessories. Installation is plug and play when used with supported controllers; consult the controller manual for adapter port location and installation steps. Practical applications Off grid cabin or small cottage: Monitor battery state of charge and charging current from inside the building without direct access to the controller. Solar lighting and outdoor loads: Use light control mode to automate lamp switching and improve energy utilization. Mobile and leisure use: Add wireless monitoring to RVs, boats, or camper setups that use a compatible MPPT controller. What this adapter delivers A compact way to add Bluetooth monitoring to supported MPPT solar charge controllers, broad battery type support, and selectable load control modes to help tailor system behavior to your application.