The MPB10 is a pressure switch manufactured by Honeywell. It is used to detect pressure and turn on or off an electrical circuit depending on the pressure that is applied. The MPB10 is housed in a durable plastic housing, and it has a pressure range of 0 to 10 psi. It is designed with adjustable set points, and an omni-directional push-button switch. This switch is UL and CSA approved, and it is an excellent choice for applications such as water supply systems, air pressure systems, and hydraulic lines.