These pneumatic room thermostats are designed for proportional temperature control of pneumatic valves and damper actuators to maintain room air temperatures in heating, ventilating and air conditioning systems.

• Small size, approximately 2" x 2"
• Factory calibrated. S.S. ball-in-seat provides pneumatic feedback for linear, stable operation.
• Easy-to-use throttling range adjustment and recalibration
• Includes tubing reducers, tubing, wall plate, mounting plate, 2 mounting screws
• R2211512, R2211513, R2212418, R2212419, R2212518, R2212519 are kits that include cover