Siemens 192-229 Pneumatic Room Thermostat 2-Pipe, Dual Setpoint, Heat/Cool, RA/DA, 7/30C

Siemens 192-229, Room Thermostat, Dual Setpoint, RA Heat, DA Cool, Celsius, 2-pipe.

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