uxcell? LJ12A3-4-J/EZ 4mm Detection Distance NO Inductive Proximity Sensor Switch [並行輸入品]

商品説明

• Proximity sensors can have a high reliability and long functional life because of the absence of mechanical parts and lack of physical contact between sensor and the sensed object. Proximity sensors are also used in machine vibration monitoring to measure the variation in distance between a shaft and its support bearing. A proximity sensor switch can be used in windows security installation, and when the window opens an alarm is activated.