Feature Highlights: 1. Reliable Safety Protection – The sensor emits an invisible beam across the garage door opening. If anything blocks the beam while the door is closing, the door will automatically reverse to prevent damage or accidents. 2. Wide Compatibility – Works as a replacement for Master Mechanics® (since 1997) and other common models, including part numbers: 041A5034, G801CB-P, 2610459, 012381050345. 3. Easy to Identify When Replacement Is Needed – Replace your sensor if: - The garage door stops or reverses even when nothing is in the way. - Only the green light is on, but the yellow light stays off. - It stops working properly in very cold weather or under strong sunlight. 4. Simple Installation – Includes all necessary brackets and hardware. Just connect the wires and mount the sensors—no professional help required. 5. Durable Build – Made from tough black plastic housing that resists wear and weather, ensuring long-term performance. Product Details: This garage door safety sensor replacement set helps keep your garage door system safe and reliable. It sends an infrared beam between two units; if the beam is interrupted while the door is closing, the door immediately stops and reverses direction. This prevents damage to vehicles, belongings, or injury to people or pets. Designed to replace worn or faulty sensors, it restores proper safety function and peace of mind. The kit includes everything you need for a straightforward installation. Specifications: - Color: Black - Material: Durable Plastic - Package Includes: 4 x Garage Door Opener Sensors, 4 x Mounting Brackets - Note: Only the listed items are included. Slight color variations may occur due to lighting and screen differences. Dimensions may vary within +/- 1–3 cm.