proflow pressure safety switch, hobbs switch, adjustable, nprmally open, 25-50 psi, 1/8 in. npt, each

Proflow's pressure adjustable safety switches have been designed to, for example, sense when oil pressure drops below a specific minimum pressure and shut-off the fuel pump.

Note: Can be used for fuel, oil and air.

Clockwise to increase the pressure set point / Anti Clockwise to lower set point - Hex screw under rubber cap