Siemens TH 357 8 ft. Limitem Liquid Filled Averaging Bulb Thermostat (35° to 145°F)

The TH 357 Limitem is a gradual-direct acting thermostat for air temperature control. This pneumatically operated instrument senses a temperature and passes on a pneumatic signal whose pressure is proportional to the temperature sensed. The sensing element is liquid filled, and is available in remote and averaging bulb styles. The TH 357 Limitem can be used to control air temperatures in a variety of air handling units. Typical applications are as primary controller for an air handling unit or a low limit control. Features: Two-valve design eliminates wasting air Rapid response to temperature change Adjustable sensitivity