The Tycon Solar™ TP-SC-BT1 Bluetooth adapters that connect to the TP-SCxxxx-MPPT solar charge controllers via the RS232 interface on the charge controller. It allows connection to the controllers via a smartphone. This allows a technician to monitor and control the charge controller from a distance of up to 15m. An Android and IOS Mobile app is available to provide the connectivity.Product Features Provides Connectivity up to 15m range Designed for Tycon TP-SC MPPT Charge Controllers Employs a dedicated Bluetooth chip with high performance and ultralow power consumption Adopts Bluetooth 4.0 and BLE technologies; boasting advantages ofquick communication, excellent anti-interference capability, etc. No External Power Source Required Conformal Coated Electronics for Environmental Protection Waterproof, Industrial Temperature Range Applications Tycon TP-SCxxxx-MPPT Solar Charge Controllers Remote monitoring and control