Item Type: Bluetooth Adapter Material: ABS Input Voltage: 5V-12V Standby Power Vonsumption: 0.04W Operating Power Consumption: 0.05W Communication Distance: Approx. ≤ 15m / 49.21ft Serial Port Baud Rate: Fixed baud rate 9600bps. Communication Mode: TTL Interface Type: PH2.0-4 Connection Line: Standard network cable, parallel line. Working Temperature: -20℃ - 75℃ Protection Grade: IP52 Application Range: For SR MC series solar controller. 1、Easier Control: High efficiency and low consumption embedded special Bluetooth chip is used to monitor and control the compatible solar charging controller through wireless Bluetooth connection. 2、Stable Signal: Bluetooth 4.0 and BLE technology provide fast and uninterrupted communication, featuring fast communication speed and strong anti interference capability. 3、Reliable Working: No additional power supply is required, and power is supplied directly through TTL communication port. The signal range can get to 15m, very convenient and fast. 4、Practical Use: Only suitable for SR MC series solar controller, supports mobile phone downloading APP connection, and can monitor solar charging anytime and anywhere. Ideal for home solar photovoltaic system, RV solar photovoltaic system, etc. 5、Easy to Install: Comes with a light weight and a compact size as well, the Bluetooth adapter is very convenient to install, which can be quickly finished in minutes. 1 x Bluetooth Adapter 1 x User Manual