GP1A51HRJ00F is a standard, OPIC-output, transmissive photointerrupter with opposing emitter and detector in a case, providing non-contact sensing. The emitter and detector are inserted in a case, resulting in a through-hole design. The case includes additional screw fixing holes, on both sides 3.2 mm diameter. https://elecena.pl/product/25262977/gp1a51hrj00f-fork-coupler-3-mm-pull-up-5-pin 2024-02-03 https://elecena.pl/product/25262977/gp1a51hrj00f-fork-coupler-3-mm-pull-up-5-pin 2026-02-12