1、APPLICABLE MODEL: XAA177HD1 sensor switch is suitable for Otis elevator, check the brand for better fit! 2、EXCELLENT PERFORMANCE: This switch features easy installation, quick response, and efficient work, choose with confidence! 3、ABS MATERIAL: Made of premium ABS material, this switch is wear resistant and temperature resistant, ensures a long life span. 4、EASY CARRYING: This small and compact switch is very easy to store and carry for convenient use and replace. 5、IDEAL REPLACEMENT: Wonderful replacement for the old and damaged parts, fine workmanship, attention to details, helps you improve the performance of the elevator! 1 x Elevator Photoelectric Leveling Sensor Switch  Item Type: Elevator Photoelectric Leveling Sensor Switch Material: ABS Applicable Type: For OTISMode: XAA177HD1