Field Sensitive Magnetic (FSM) Proximity Switch for MXP and MX divider valves, 3 pin BH connectorA proximity switch is a magnetically operated sensing device used to detect cycles of a Series Progressive Divider Valve. Install a proximity switch in place of a piston enclosure plug to allow a PLC or lubrication controller to monitor cycles of the divider valve assembly. O ring sealed proximity switch for Trabon MXP and MX divider valves. Compatible with 24 VDC and 110 240 VAC 3 pin BH electrical connector mates to cable 558021 (6 ft 1. 83 m) and