Duct temperature and humidity sensor B / CS / XB / CS / N, this type of sensor can be used for a series of relative humidity measurement, 2% accuracy, can maintain the measurement accuracy in a wide range of humidity (20 TO 90% RH) . It has a strong adaptability to pollutants in the air, so it can be used in aggressive environments. All stainless steel tube design and copper filter mesh are convenient for cleaning. 4-20MA transmitter two core wire output, IP65 protection level, with M20 cable / conduit can be inserted into the hole.