Feature: Support normally open normally closed adjustment. Support threshold display. Support reflective valve display. Upper and lower limits are set to prevent out of range. Strong anti-interference ability and high sensitivity. Detection background clearance Key lock to prevent misuse. The product supports quick reset factory settings, which is convenient for you to adjust the device. Specification: Model: ER2-22H Induction method: light perception Response speed (microseconds): 25 Detection distance (the longest distance mm): reflection: 400; opposite : 2400 Adjustable delay range: 0-9999 milliseconds Sensitivity adjustment method: intelligent value Luminous intensity adjustment: stepless adjustment Applicable voltage: DC 12-24V (brown with positive pole, blue negative, black signal output) Weight: 81g / 2.9oz Package list: 1 * Optical Fiber Amplifier 1 * User manual 1 * Package bag Note: The actual product color may deviate from the photo due to light. There may be a slight deviation in the measurement of product. 1、Support reflective valve display. 2、Upper and lower limits are set to prevent out of range. 3、Strong anti-interference ability and high sensitivity. 4、Key lock to prevent misuse. 5、The product supports quick reset factory settings, which is convenient for you to adjust the device.