<p>The 87943-08 Push Button Switch from Honeywell is an environmentally-sealed, robust switch that is designed for extreme temperatures. Push Button Switches, also known as biased switches, are designed with a simple electric switch mechanism. They are used to control some aspect of a machine or a process. These switches are made out of plastic or other hard materials to deliver instant response when pushed or pressed. </p> <p>The 87943-08 Honeywell Switch has a dual O-ring design that isolates and shields the contact chamber from moisture or any other contaminants. The Honeywell sliding contact, Push-Pull Switch incorporates two circuits with multiple combinations. It is vibration-resistant and generally used in construction, marine, agricultural, mining, machine tools, lawn and garden and heavy equipment, among others.</p>