Materials Insulating base moulded in SMC (fiberglass). Characteristics M8 bolt terminals in AISI 304 stainless steel with 4 hole for measuring plugs. Applications For potential connection to pipes for instantaneous and recorded measurements with or without reference electrode. TYPES MPE/PP2 - MPE/PP3 - complete with sliding copper parallel jumpers. TYPES MPE/PP4 - complete with two sliding copper parallel jumper.