■ Internal high capacity 3.6V lithium battery, external optional AC220V or DC24V power supply mode,
■ Special meter lever design to improve measuring accuracy & stability and reduce the requirement for straight piping during installation,
■ The calculator is designed with an elevation angle of 45°, satisfy users for data reading from multiple angles of front, top and bottom,
■ Protection Level is IP68,
■ Compatible with CJ/T 188, MODBUS RTU, GB/T 26831 communication protocol,
■ Support optical IrDA, RS485, M-Bus,wireless (NB-IoT, LoRa) interfaces, convenient for user to manage data in different manners,
■ 4-20 mA output mode optional,
■ Compatible to the German Heating Association Measurement NOWA protocol.