Honeywell 135 Ohm, Proportional Thermostat, 13 C to 29 C

Proportional Thermostats provide low voltage, 3-wire control for valve motors, damper motors, and balancing relays in heating or cooling system applications. Product Features: Bellows element adjusts potentiometer slider to regulate motor operation. Removable setting knob prevents unauthorized tampering with setpoint. Product Specifications: Output Signal: 135 Ohm potentiometer Setpoint Temperature Range (C): 13 C to 29 C Mounting: Wall mount Throttling Range: 1.4 C Dimensions: 5 11/16 in. high x 3 3/8 in. wide x 2 1/4 in. deep