By law, all modern garage door openers come with some form of garage door safety sensor. Final Takeaway- Bypass Garage Door Sensors. Plus, learn all about what the Z-Wave smart home connectivity protocol is and why you should use it. Check out the best Z-Wave garage door sensor options available in 2018, from basic tilt sensors to full on garage door controllers for smart home control and automation. If either sensor fails the garage door . Many experts recommend hiring a garage door repair and installation professional to install your opener. If an object or person is in the way of the beam, the closing door reverses direction. The safety eye sensors function to create a beam with one sensor, amber colored light being the transmitter, and the other sensor, green light being the receiver. Carefully following the instructions in your garage door opener manual is critical to ensuring the sensors on your system work properly.. The legislation was put in place requiring garage door sensors to be placed on every garage door in 1993. It’s very easy to Bypass Garage Door Sensors, just follow these simple steps. opener will not allow the garage door to close. The garage door opener has two sensors that prevent the garage door from closing on a person or object: one that sends an infrared beam and one that receives the beam. We hope you find this comprehensive guide on, “How to bypass the garage door sensors” helpful. Garage door sensors utilize a photo-eye sensor and a beam of infrared light that goes between the two units. How does the system know there is something blocking the way? But, how do the sensors work?