Siemens 192-208 Pneumatic Room Thermostat 2-Pipe, Heat/Cool, DA/RA, 45/85F

Siemens 192-208, Room Temp Thermostat, Pneumatic, DA Heat, RA Cool, Fahrenheit, 2-pipe.

Powerstar 192 series Heating/Cooling Pneumatic Room Thermostat, direct acting heat @ 25 psi, reverse acting cooling @ 18 psi, proportional dual setpoint, single output, two-pipe high air capacity room temperature control. Fahrenheit scale. Wall plate and mounting screws included.