shut-off timer

or other papers

Guardian G3707LF 34 Gallon Capacity Thermostatic Mixing Valve in a Recess Mounted Stainless Steel Cabinet with Tag Showing ASSE 1071 Compliance

They may need replacing or repair when they leak

Autonics Totem Pole Output Type, Encoder, Shaft,Shaft Dia., 360 Pulses per Revolution - E30S4-360-3-T-24-C Liquid Soap Dispensers shut-off timerRotary encoder converts shaft rotation into electronic pulses to electronically monitor the position of a rotating shaft. A control unit evaluates encoder output to determine machine position and velocity, and provide high accuracy and flexibility in motion control. Encoder helps boost productivity by increasing system speeds and accuracy, and decreasing cycle times. For use in applications that require monitoring of acceleration, direction, rotation