The Renogy Bluetooth Communication Hub enables the connection of multiple Renogy appliances through an RJ45 port and RS485 communication protocol, using just one BT-2 Bluetooth module. With this hub, you can easily monitor multiple devices simultaneously using your phone. In addition, the hub is compatible with a variety of devices thanks to its support of RS485 and CAN communication protocols. Furthermore, it is fully compatible with all Renogy products featuring an RJ45 port. Features Compatible with all Renogy Products with RJ45 Port. Monitor multiple devices at the same time with a single Bluetooth module. Connect to our user-friendly smartphone App, Renogy DC Home, to keep track of your system. Supports both RS485 and CAN communication protocol. Green LED lights indicate which communication protocol is currently on. Specifications Input Voltage: 9V - 60V Standby Power Consumption: 0.324W Operating Power Consumption: