TH-192 Retrostat Kit w/ Direct Acting Celsius Scale

The Siemens 192-840 Powerstar Retroline Retrostat Pneumatic Room Thermostat converts most existing pneumatic room thermostats to a Powerstar 192 direct, 2-pipe, single set point unit. The Day/Night or Heat/Cool Retrostat is factory-calibrated to match the appropriate changeover pressure of the competitive thermostat. The complete kit includes a Retrostat cover kit with exposed or concealed set point adjustment, set point dial in Fahrenheit scale, factory-calibration for accuracy, all installation hardware and calibration wrench. The kit fits into large format wall openings, using ?goof plate,? which is included, as are integral, field adjustable limit stops, a test port for fast check of output pressure without removing the cover, field replaceable thermometer, set point dials, restrictors, and filters. Standard case cover color is Desert Beige. Features: Complete kit including Retrostat cover kit with exposed or concealed setpoint adjustment Setpoint dials available in Fahrenheit or Celsius scales Factory calibrated for accuracy All installation hardware and calibration wrench provided. Fits into large format wall openings, using included "goof plate" Integral, field adjustable limit stops Test port for fast check of output pressure without removing the cover Field replaceable thermometer, setpoint dial(s), restrictor(s), and filter(s)