SN52D series impeller flow sensor is also a smart flow and temperature switch, which is a smart flow and temperature sensor with small volume and simple setting. It has built-in intelligent circuit, which can set the upper and lower limit alarm values of flow and temperature arbitrarily, remotely monitor the real-time flow and temperature conditions, and set all parameters arbitrarily on site. Its impeller measuring medium passes the flow The temperature can be programmed arbitrarily after being processed by the intelligent circuit of the sensor.