SECRUI Door Alarm for Home Security, Window Sensor, 120dB, 4 Modes, Easy Installation, Security Alarm for Kids Safety Home Garage Apartment Office (2 Pack)

Love these door alarms and you can't beat the price. So easy to install and very loud. Very worth the price.

This is a very good little motion detector sensor for the money. We recently had our pool installed & this was the sensor our builder got us. It came with 2 separate sensors. We installed 1 on our sliding back doors & 1 on our basement door. It works for sure, but the best part about this style sensor is that it’s super easy to turn on & off. You just slide the button up or down & it’s easily reachable while attached to the door. We have a very large home but this is pretty loud. You will hear it for sure. Also, it does not sound like any other random device when it goes off. So it’s got it’s own sound, which is very nice. In other words, you won’t think eh it’s just someone’s car alarm or phone or something else. No. You know it when this thing goes off. If you have children, this is a great little device to install on your doors. And when I say install, I mean, simply load it with the right batteries, stick it up on your door & slide the button to activate. Super simple.

Good product but needs to be more versatile for inside mount.I outside mount

we were required to install an alarm on the sliding door before we sold the house because of the pool in the back. the price was good and these were really easy to install. when I tested it the sound was very loud it should work great. I'm not sure of the battery life because we haven't had it long but I have the other one to install somewhere at the new place so should know how well it works then.

Pros: Extremely loud alarm. Works as described. Use of AAA batteries excellent. Con: The cheap adhesive strips supplied allowed the alarm to literally fall off the door. In the middle of the night this was not pleasant! (See alarm volume above) I don't know why such a good product was totally hurt by giving customers such an inferior adhesive.

Junk and not worth the pain to return. It wasn’t worth paying to return it either so I was just out like the $10 I paid for it.

This thing is sweet. I bought it because my autistic son just learned how to unlock our deadbolt and found himself in the hallway. I’ve added this, along with a door knob cover, and feel prettt good about it. This is super loud, and I’ll be using the alarm at night but even the door bell chime is not a pleasant sound, not ideal if it’s not for safety but amazing for safety

Doesn't stick to the wall very well falls off the stickers that come with it could be better

No instructions in English, only Chinese. Not that we needed to know how to place the pieces but it’s simply not right. They worked well for a few months, then one of them would start making the alarm even with the door closed, the other one stopped working all together.