186-0013
Pneumatic Room Hygrostat
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Direct Acting, 20% To 90% RH Control Range, 135 F Maximum Dry Bulb Temperature.

Features

The HU 186 Room And Duct Hygrostats Are Pneumatic Instruments Sensitive To Slight Changes In Relative Humidity
Features Adjustable Sensitivity And Bimetal Temperature Compensation To Minimize Temperature Effects
The Room Hygrostat Comes Complete With Standard Cover And Wall Plate