Which Garage Door Sensors are Most Reliable? Infrared vs. Laser Sensors Explained


Before diving into the specifics, it’s crucial to understand the role of garage door sensors. These devices help in preventing accidents by detecting any obstructions and stopping the door from closing on them.

Two Major Types of Sensors

There are primarily two types of sensors used in garage doors:

  1. Infrared Sensors
  2. Laser Sensors

Infrared Sensors: How They Work

Infrared sensors, also known as photo-eye sensors, work using an infrared light beam. The mechanics are simple:

  • An emitting unit produces an infrared beam.
  • The receiving unit detects this beam.
  • If something interrupts the beam, the sensor activates, and the garage door stops or reverses its motion.

Advantages of Infrared Sensors:

  • Reliability: They are time-tested and are commonly used in many homes.
  • Safety: The broad beam ensures a high chance of detecting any object in its path.
  • Affordability: Often, they are less expensive than laser sensors.


  • They can sometimes be fooled by strong sunlight.
  • Dirt and debris can interfere with their function if not cleaned regularly.

Laser Sensors: The Modern Approach

Laser sensors are relatively newer in the garage door world. They function similarly to infrared sensors but use a laser beam instead of an infrared one.

Advantages of Laser Sensors:

  • Precision: They are more accurate due to the focused nature of lasers.
  • Less Interference: They are less likely to be affected by external light sources.
  • Compact Design: Typically smaller in size.


  • Often more expensive.
  • Requires more precise alignment during installation.


Which One is More Reliable?

Both types of sensors have their strengths. While infrared sensors are reliable and have stood the test of time, laser sensors offer precision. Your choice will often boil down to personal preference and budget. For those looking for a more affordable and tried-and-true option, infrared might be the way to go. Those seeking the latest in technology and precision might lean towards laser sensors.

Maintaining Your Sensors for Reliability

Regardless of the type, regular maintenance is essential. Here are some quick tips:

  • Clean Regularly: Dust, dirt, and debris can interfere with function.
  • Check Alignment: Misaligned sensors can lead to false triggers.
  • Test Frequently: Regular testing ensures they work when you need them most.


Factors to Consider When Choosing a Sensor

When deciding between infrared and laser sensors, keep the following factors in mind:

  • Environment: In areas with frequent intense sunlight, laser sensors might have an edge due to their resistance to external light interference.
  • Budget: If you’re working on a tight budget, infrared sensors might be the better choice given their affordability.
  • Space: Laser sensors, with their compact design, might be more suitable for garages with limited space.
  • Installation: If you’re thinking of a DIY installation, consider your skill level. While infrared sensors are generally straightforward, laser sensors might require a bit more precision.

Safety First

No matter which sensor you choose, remember that it plays a critical role in the safety of your garage. A malfunctioning sensor can lead to accidents. It’s not just about preventing your car from getting scratched, but more importantly, it’s about ensuring that children, pets, or any family member remains safe.

Upgrades and Future-Proofing

If you’re planning on revamping your garage in the future, think about how each sensor type might integrate with other planned upgrades. Some modern home automation systems might have better compatibility with one type over the other.

Trust the Experts for Installation and Maintenance

If you’re looking for reliable garage door repair Burnsville, Minnesota, consider reaching out to experts who have a proven track record.

Johnsons Mobile Garage Door Repair in Burnsville

Johnsons Mobile Garage Door Repair is a trusted name in Burnsville. With years of experience, they’ve been ensuring the safety and functionality of garage doors in countless homes. Not only do they offer expert advice on the best type of sensors for your needs, but they also provide top-notch installation and maintenance services.

Their dedication to customer satisfaction and attention to detail has earned them a stellar reputation. So, when thinking about your garage door needs, remember the name that Burnsville trusts: us. Check their site to know more about Johnsons Mobile Garage Door Repair in Burnsville.


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