Ximimark 5Pcs Laser Sensor Module Non-Modulator Tube Laser Receiver Detection Module Relay Switch 5V for Arduino

Supply voltage: 5V, Output: High level when there is laser irradiation, low level when there is no laser irradiation. , This sensor uses a non-modulated laser receiver. Please use it in a place where there is no light indoors. Sunlight or other lamps may interfere. It is recommended to use it in a dark environment. , Size: 1. 52CM*2. 22CM (1CM=0. 393inch), We highly appreciate all customers opinions to improve the selling, also if anything you unsatisfied, please for probable best solution.