Apem vandal resistant 22mm piezo switches ip69k apem pbarzafb000g2a a durable high impact resistant and cosmetically attractive piezo switch and a surface that remains completely closed protecting against dust dirt debris and liquids the switch has a flat operator height of 3mm flying leads and a stainless steel finish with greenwhite leds atex certification apem pbarzafb000g2a 22mm ip69k vandal resistant piezo switch spst off on