PS-10-EX POTTEREXPLOSION PROOF PRESS.SWThe Potter PS10 EX Pressure Actuated Switch is designed to detect water flow conditions in automatic fire sprinkler systems located in specified hazardous zones, as previously mentioned. It is typically utilized in wet pipe systems that feature alarm check valves, as well as in dry pipe, preaction, or deluge valve systems. Furthermore, the PS10 EX can provide a low pressure supervisory signal, which is adjustable between 4 to 20 psi (0. 27 to 1. 3