The Omron D4C1201 is a metal-bodied limit switch with a plunger actuator, rated IP67 for washdown environments. It switches loads up to 2 A at 250 V AC or 30 V DC through a single changeover (1CO) contact set. The 12 N operating force means it triggers reliably under a firm mechanical press — think cam followers or machine slides — but won't trip on vibration alone.
Comes with a 3 m cable attached, so you wire it straight into a junction box or panel gland — no separate connector to source. The metal housing handles the knocks of conveyor rails, packaging machines, and automated gates. IP67 means it survives hose-down cleaning cycles, which is what you want on a food or beverage line.