KERUI Wireless Indoor Motion Sensor Door Bell Shop Visitor Alert Chime Alarm Burglar for Business When Entering Door Opens

Perfect for what I was looking for: A SMALL, STAND-ALONE, NON-WIFI REQUIRED, LOCAL Alarm that is super easy to set up. Slap 3x AAA batteries in it, turn volume down, select tone and re-adjust volume, turn it on and point it where you need it. It is "locally" loud, but not Super Loud; it would definitely wake you up if you're within an unimpeded 100'.The hinge allows approx 240 degree range in approx 20 degree increments, all the way to approx 30 degrees below parallel in either direction. Setting this on a stair run pointing down the stairs is stable and works great to cover the stairs too. Range is short- 10-15'. Smallest configured Size: approx: 2.5x3x3"Great little motion sensor alarm for anywhere you need. Great to enhance security at Hotels, BnB's, even camping!

I use this as motion detection alarm placed in areas that I don't want my cats around. It works well. There was a spot on the open floor where my cat was urinating. The motion alarm kept the cat away and broke their association habit in about 1 1/2 weeks. I removed the alarm and had no problems.

I leave the door open sometimes to my cats see the street and go in and out. So it alert me if someone approaches. I wish it had a control to diminish the sensitivity. Cats moving can make it start too often. I want to hear only people's movement. But it's overall good.

This works perfect for alerting us when our puppy goes to the door. The different sounds are great. You can pick the volume you want.

First. I LOVE IT! It is a hoot though on music or HELLO. I use the music choice. It doesn't bother my dogs at all as they walk in and out to the porch. People walking by look up trying to figure it out. Good security also. Good quality - good price.

This security unit is built very cheaply. While mounting the unit it made a rattling sound. Something was lose inside the unit, after that the unit work intermittently and very erratically.

Installed easily and has different chimes you can set along with a volume setting.

This is a keeper. This will detect any type of movement and keep you alert and aware of anyone that is not supposed to be in your home.