The BES M18MI-PSC70B-S04G-W photoelectric sensor features an M18x1 housing with dimensions of Ø18x65mm, designed for flush mounting. It offers a detection range of 7mm with PNP normally open (NO) switching output and operates at 50Hz frequency. Constructed with brass housing and PTFE coating, the sensing surface utilizes LCP/PTFE material for reliable performance.