Features 1、LIGHT INDICATION: This upgraded leveling sensor is designed with indicator light, more convenient for using. 2、APPLICABLE MODEL: The model is XAA177HD1, this photoelectric leveling sensor is suitable for OTIS elevator. 3、HIGH PERFORMANCE: The elevator level switch has rapid response speed and high sensitivity, can be used with confidence. 4、RELIABLE MATERIAL: The elevator photoelectric level switch adopts premium material, not afraid of falling, resistant to high and low temperature. 5、PERFECT SUBSTITUTE: This is a perfect substitute for original ones, which is simple and convenient to install. Specification Item Type: Elevator Leveling Sensor Material: ABS Applicable Model: For OTIS Model: XAA177HD1 Package List 1 x Elevator Leveling Sensor