Humidity Sensor - H8800 SeriesThese products are all Made to Order Which means they are non cancelable and non refundable Description Humidity Sensor The Humidity Sensor is a single sensor programmable humidity monitoring security device. Unlike its 1st cousin, the T8800, used for temperature sensing, the H8800 has one sensor to detect and report relative humidity. The single humidity sensor is housed in the appliance (H8800) or it can be ordered with a remote probe (H8800R). The