5Pcs Laser Sensor Module Non-Modulator Tube Laser Receiver Module With 5Pcs Laser Receiver Sensor Module: Model: Laser Receiver Sensor Module+ KY-008 Laser Transmitter Module. Operating voltage: 5V; KY-008 source wavelength:650 nm. Output: High level when there is laser irradiation, low level when there is no laser irradiation. Note: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. Package Content:5pcs Laser Sensor Receiver Module with 5pcs KY-008 650nm Laser Transmitter Module.