KERUI D121 Wireless Door Window Contact Alarm With Remote Control, 3 Modes Garage Shed Sensor for Home Shop Security, 2 Alarms and 1 Remote

Perfect gadget, easy to use. We have it on a cupboard that we store paperwork etc. does what it says in the description

Works as described. Easy to install and loud enough.

Adhesive stickers are good enough.Strength of magnet block is enough to trigger alarm even if not attached perfectly close to device.Alarm siren is as it should be - loud and drilling the ears.In doorbell mode, can't complain.I wish if doorbell sound would be a bit nicer but louder, but it is as it is.Remote works perfectly.Button icons are not very visible but okay.

I’m going to glue this In Place so it doesn’t accidentally go off when the sticky pads fail which they are bound to. You can’t just put this on the door turn it on and hope it works. There’s a huge instruction leaflet and the front is so small, it cannot be seen with perfect vision using a magnifying glass. I’ve taken a photo and enlarged it on my 32 inch monitor and it is just about legible although the English is so poor it’s still difficult to work out about when you are meant to press such and such a button while setting it up I will add to this review. If and when I get it working, it is obviously cheap and cheerful and if it doesn’t work then I won’t mind it at all because the alarm didn’t go off when I put batteries in although I didn’t want it to, and it was fairly loud considering the size of the device.

Yes it was easy to install , yes it worked perfect to begin with , having phone notifications was a plus , but only lasted for 3wks then just died ....nothing no warning . I know it was cheap but i exspected a bit longer . Cheap crap dont bother .

Easy to setup. Handy remote. Very loud!! I like that it has the option for alarm or doorbell. My son actually ordered this to keep his sister's out his bedroom 🤣 he's very happy as wherever he is in the house he can hear if someone opens his door.

works well does the job

Purchased as a door chime to use on busy front door or elderly mother house career's, nuse, and relatives coming and going, brilliant way of her knowing someone come in the door and acts as a security deterrent.