Barber Colman Reverse Acting Heat-Cool Thermostat w/ Dual Setpoint (55-85F)

For proportional control of pneumatic-actuated valves and damper actuators to maintain room air temperatures in heating, ventilating, and air conditioning systems. Features Attractive appearance. Branch-line to sensing-element pneumatic feedback for linear, stable operation. Available with °F or °C setpoint scales and thermometers. Covers supplied with exposed setpoint and thermometer. Aspirated versions of certain models available.