Wireless Entry Home Door Window Burglar Alarm-Safety Security Alarm System Magnetic Sensor (Pack of 5) 1

Very loud, extremely sticky (ripped the wall off when I tried to remove it lmao) battery doesn’t last long. Very easy to instal. Over all great product.

GREAT PRODUCT AND SIMPLE! Was kinda worried at 1st about getting these, bc i have read they didnt work on uneven surfaces or things that didnt lye flush... who ever wrote that must not have know how to set them. They have 2 arrows u line up, u can even turn the sensor sideways and have a pretty far sized gap between them for uneven surfaces or things that dont a line. AND THERE LOUD!... Great product! GREAT PRICE? And a better peace of mind! I live in a apt building and i hate not knowing when someone is coming in to fix something or never know when someone gonna want to sneak in a window in these days and time.. worth peace of mind! Worth the buy!

Garbage. Two of them fell apart in my hand when I switched them on and off for testing. One was not loud. The sensor bars barely stick. Junk that isn’t even worth my time to return. I think that’s what they are counting on. I HATE to see cheap plastics put out there to make a buck that ALL END UP IN THE LANDFILL! BOYCOTT THIS PRODUCT AND ITS PRODUCER.

Two of the five units were defective but I needed to set two doors up for an inspection so I couldn't wait for a reorder. The sound is effectively loud. Depending on your door frame it may be a little tricky to align the two parts. Although, I did not purchase for windows I noticed that this product would not work on they type of windows I have, the two surfaces that each part sticks to really need to be flat with nothing between the connection. The adhesive does work, however one did fall off but may not have been installed right, I'm curious how they will hold up during the summer.

They are easy to install, and work well, but the design is a little confusing. I had a different brand for several years and it was easy to match the arrows up to know where to place them on the window. This brand has arrows, but they don't match up and the placement doesn't line up evenly for the two pieces. It doesn’t affect the functionality, but if your at all OCD, then it may bother you.

Very happy with this! Probably won’t stop a home intruder but will keep the toddler in and will definitely alert me.

Very good overall

Purchased these for the windows in my apartment. 3 alarms work but only 2 sensors will shut off the alarm. So I was only able to use 2 of them and needed at least 3. Trying to get a resolution from the seller went no where... So now I'm stuck with 3 useless sensors. If they all worked, definitely would of given 4 or 5 stars.