The Johnson Controls NSB8BHN241-0 Temperature and Humidity Sensor with Display is a wall-mounted sensing device designed for compatible HVAC control systems. It measures room temperature and relative humidity, then communicates the readings to the building automation or HVAC controller for accurate environmental regulation. The integrated display provides convenient access to current ... https://www.partshnc.com/nsb8bhn241-0-johnson-controls-temphum-white-sensorwdisplay