Room sensors measure air temperature, not the temperature of a medium: cold rooms, refrigeration plants on ships, warehouses, air-conditioning and building services. The housing is screwed to the wall and the short protective tube reaches into the room – no process connection, no process pressure.
Versions are available that output their resistance directly and versions with a built-in transmitter for 4…20 mA. Some room sensors also measure relative humidity. For measurement in the medium see the screw-in sensors.
