GAGALOR Alarm Magnetic Contacts For Garage Door Switch Sensor NC With L Bracket

Holes even lined up with my old one. Works perfect. Got my alarm working again.

I used this product to replace an older set of alarmed garage door magnetic contacts that were of much lesser quality and had failed...I was concerned about the strength of any replacements until I found this product online. I must say, I am very pleased with its quality, ease of installation and performance. I highly recommend it. It can be purchased in a NC (normally closed by the magnet) or NO (normally open by the magnet) depending on customer need.

Worked well for the use

I love this sensor for my WI-FI garage gate opener, has a random gap distance variation every time I open and close the sliding gate. Now know when the gate is open or close with a warning indicator with error proof of false alarms.

I recently purchased the Heavy Duty Wired Alarm Garage Door Magnetic Contacts Switch Sensor NC and I have to say that I am overall satisfied with its quality and durability. The adjustable bracket makes it easy to install and the NC function provides peace of mind knowing that if the door opens unexpectedly, the alarm will sound.However, I was disappointed to discover that the product did not come with any concrete or masonry hardware to attach it to a concrete floor. This added an extra expense and inconvenience as I had to purchase additional hardware separately. Additionally, the wire was too short to reach my desired location, but this can be remedied with a longer wire.Overall, the product is well made and I appreciate its durability. I would recommend it to others, but with the caveat that it does come with some limitations