Model: Square Capacitive Proximity Sensor | CE40 Pre-wired Non-shielded | CE40-20NO-ZBA-3A-P, CE40-20NC-ZBA-3A-P, CE40-20PO-ZBA-3A-P, CE40-20PC-ZBA-3A-P, CE40-20PS-ZBA-4A-P, CE40-20NS-ZBA-4A-P, CE40-30NO-ZBA-3A-P, CE40-30NC-ZBA-3A-P, CE40-30PO-ZBA-3A-P, CE40-30PC-ZBA-3A-P, CE40-30PS-ZBA-4A-P, CE40-30NS-ZBA-4A-P, CE40-40NO-ZBA-3A-P, CE40-40NC-ZBA-3A-P, CE40-40PO-ZBA-3A-P, CE40-40PC-ZBA-3A-P, CE40-40PS-ZBA-4A-P, CE40-40NS-ZBA-4A-P, CE40-15NO-ZBA-TA-P, CE40-15NC-ZBA-TA-P, CE40-15PO-ZBA-TA-P, CE40-15PC-ZBA-TA-P, CE40-15PS-ZBA-TA-P, CE40-15NS-ZBA-TA-P