The BALLUFF BES IKV-045.23-G-Z-S4 (BES02TY) is a block-style photoelectric sensor with dimensions of 115 x 80 x 30 mm, featuring a 45.0 mm pass-through and minimum detectable target size of 9 mm ball diameter. It has a PNP normally open (NO) switching output, with both housing and sensing surface made of plastic. The sensor utilizes connector-type connection.