Johnson Controls T-5002-203 Pneumatic Room Temperature Transmitter 120°F-70°F

The Johnson Controls T-5002-203 Pneumatic Room Temperature Transmitter is a device that is installed on the wall and uses room temperature to produce a pneumatic signal in proportion to air pressure. This signal is then used to control HVAC equipment, to maintain comfort and energy efficiency of temperature within a building. This transmitter works under temperature conditions of 120°F to 70°F. When the room temperature rises, the internal sensor expands, and the air pressure output increases (from 3 to 15 psi).