Ht20 is a relative humidity and temperature indicator with a range from ground level to 100% rh and a operating temperature spectrum of, 20 to 100 c. It receives input from radix s sht20, Sht30 wall, Mount and sht40 duct, Mount rh, T sensors which should be placed as an order separately and could potentially be placed A maximum of 50 meters from the unit. Ht20 features a two, Color dual led display, The upper indicates relative humidity and temperature. This, The lower rh, T indicator is accurate to within 2% for humidity and within 0. 5 c for temperature. Ht20 transmits an isolated current 4, 20 ma or voltage Provides a 0. 10V DC output signal suitable for interfacing with devices like a programmable logic controller (PLC) or a solid-state relay (SSR) Our instruments provide safeguarding your, Signal isolation equipment and machinery from harmful fluctuations that may occur downstream the incoming signal this product features radix s proprietary sensor, Break indication technology.