How to trick garage door sensors?

How to trick garage door sensors?


Garage door sensors are an essential safety feature that prevents accidents and protects property. These sensors use infrared technology to detect obstacles and prevent the door from closing if something is in its path. However, there may be instances where you need to trick garage door sensors temporarily, such as during maintenance or testing. In this article, we will explore some methods to trick garage door sensors safely and responsibly.

Understanding Garage Door Sensors

Before we delve into the methods, it’s crucial to understand how garage door sensors work. Typically, garage door sensors consist of two components: a transmitter and a receiver. The transmitter emits an infrared beam, while the receiver detects the beam. When an object interrupts the beam, the receiver sends a signal to the garage door opener, preventing it from closing.

Method 1: Using Tape

One of the simplest ways to trick garage door sensors is by using tape. By placing a piece of tape over the receiver’s lens, you can temporarily obstruct the infrared beam. This method is useful when you need to test the functionality of other components, such as the garage door opener or remote control. However, it’s essential to remove the tape once you are done to ensure the sensors function properly.

Method 2: Adjusting Sensor Alignment

Another method involves adjusting the alignment of the sensors. Over time, the sensors may become misaligned due to vibrations or accidental bumps. To trick the sensors, you can slightly adjust their positions so that the infrared beam is not interrupted. However, it’s crucial to note that this method should only be used temporarily and not as a permanent solution. Misaligned sensors can compromise safety and increase the risk of accidents.

Method 3: Using Reflective Surfaces

In some cases, using reflective surfaces can trick garage door sensors. By placing a reflective object, such as a mirror or aluminum foil, in front of the receiver, you can create a reflection of the infrared beam. This reflection can trick the sensor into thinking that the beam is not interrupted, allowing the door to close. However, it’s important to exercise caution when using this method, as it may not be as reliable as the other techniques mentioned.


While it may be necessary to temporarily trick garage door sensors for certain maintenance or testing purposes, it is essential to remember that these sensors play a crucial role in ensuring safety. It is always recommended to use these methods responsibly and revert the sensors to their original state once the task is completed. Misusing or tampering with garage door sensors can lead to accidents or property damage.


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