WM81 - Adjustable Pressure Switch
Product Brand: Williams Controls
A a non-grounded switch that responds to a drop of air pressure below a preset level.
The WM-81 is a non-grounded switch that responds to a drop of air pressure below a preset level. The WM-81 adjustable pressure switch feature an adjustment that allows the actuation setting to be modified. Designed for low-voltage, low-current applications, these non-grounded switches are frequently used to activate a warning light or buzzer when a low pressure condition exists in the vehicle’s air brake system. The WM-81 is not UL approved.