19mm piezo switch, IP68 whole waterproof Explosionproof Momentary or lock type use in bad environment piezo switch

19mm IP68 whole waterproof  Explosionproof Momentary or lock type use in bad environment piezo switch

Application scope：

Winning equipment Cleanroom interface

Access control system Household appliance

Medical equipment Electromechanical instrument

Industrial cabinet Elevator control system

Emergency call systems