The BES M12EG1-PSC20N-S04G-S (BES02Z2) is a photoelectric sensor with dimensions of Ø12×65mm, featuring an M12×1 threaded housing for flush mounting. It offers a sensing range of 2mm with PNP normally open (NO) switching output, operating at 15Hz frequency. Constructed with stainless steel housing and sensing surface for durability.