5Pcs Laser Sensor Module Non-Modulator Tube Laser Receiver Module With 5Pcs Laser Receiver Sensor Module: Product Features 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. Shipping: Shipping is complimentary within the lower 48 US States. We Do Not Ship to PO/APO Boxes, HI or Alaska We Do Not Ship Outside of the Continental US All items ship within 24-72 hours of Payment For large items that require Freight shipping a valid phone number is required to call and schedule your delivery Terms of Sale and Feedback: Feedback is extremely important to us and If you are satisfied with our transaction, please take a moment to leave Positive Feedback. YOUR Satisfaction is our #1 Priority! If there are any issues, PLEASE contact us BEFORE leaving a neutral or negative rating so that we may resolve any concerns. We PROMISE we can make you happy if you give us a fair chance. Returns / Concerns: All items qualify for returns within 14 - 30 days of receipt. Buyer is responsible for return shipping on any item that is not damaged Please be sure this is an item you want before making your purchase. Customer Satisfaction is our TOP priority! All items are IN STOCK at time of listing. Inventory changes constantly and it is impossible to maintain a perfectly accurate count of all items. Please do not penalize us if we have to issue you a refund! Thank You For Your Business!