

🔒 Secure your space with smart simplicity—because your safety deserves no compromises!
The GAGALOR 4 Sets NC Wired Door Alarm Magnetic Contact Sensor offers a reliable, easy-to-install security upgrade compatible with major systems like ADT and Vivint. Featuring a normally closed switch with a 0.5-inch detection range and simple double-sided tape mounting, these compact white sensors provide professional-grade protection with minimal effort.
| ASIN | B0BMG19XTW |
| Battery Description | Alkaline |
| Best Sellers Rank | #136 in Home Security Systems |
| Brand | GAGALOR |
| Built-In Media | Case |
| Color | white |
| Control Method | Touch |
| Customer Reviews | 4.4 4.4 out of 5 stars (176) |
| Item Dimensions L x W x H | 0.39"L x 0.39"W x 1.97"H |
| Item Type Name | WHITE |
| Item Weight | 0.03 Kilograms |
| Manufacturer | GAGALOR |
| Maximum Range | 0.5 Inches |
| Mounting Type | Protruding |
| Power Source | Battery Powered |
| Sensor Technology | Contact Sensor |
| Unit Count | 4.0 Count |
R**D
Works great
Worked perfectly, replaced a broken sensor
H**O
Works for sure with ADT or Vivint security systems
I had a few bad window sensors. These said they were compatible with Vivint and ADT security systems, so I gave it a try because they were cheaper than from the Vivint or ADT app. The price had me worried. But THEY WORKED exactly as the Vivint and the ADT sold ones. These will be purchased by me again if anymore of our sensors go bad. Easy to connect and set up too.
C**K
Perfect
Saved a ton of money adding to different positions on my windows and not paying the alarm company.
A**R
Tough installation
Wiring was a bit tough to figure out but it worked for a while and suddenly stopped
W**N
Highly Recommended Alarm Door Sensors.
So far, there have been no false alarms. The magnets worked perfectly for my alarm system. I will update this review should these magnet/sensors fail to meet my expectations.
S**Z
Reliable sensors.
Bought new windows. On the windows that do not open, we added these. They sit on the sill and have been quite reliable. Rather have them inside the wall, but these have turned out just fine.
S**E
Worked Fine
Worked as described. Used in a window replacement.
N**W
Easy installation
Works great
R**L
Great slim form factor for my newly installed windows. I bought them because they were slim, I could easily screw in the existing wires, and there was double sided tape. Wired them up today and it works great!
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