SANJIE Wireless Door Open Alarm Sensor Chime for Home Security Business Shop Office When Entering,Shop Entry Chime System, 800FT Long Range,55 Ringtones 5 Volume Level,2 UK Plug in Receivers 1 Sensor

Works very well and easy to install

Godsend and easy to set up and use. Loud enough

Price/Performance point it was the best one I could find in UK market

Stopped working after 2months of use

Great item does what it says on the tin but before buying make sure your door isn’t chamfered edged as the two pieces won’t work if they are about 2mm gap apart.

a must if you have autistic child and can abscond or try to run away and if door not secured. I have plugged one receiver in bed room and one near door.

I needed this for my shop and it works great. Very easy installation, you just need to stick it to your door and plug in the chime to a socket. Easy!

Bought these for my grandparents They often don’t hear the door go So this was perfect one in the living room and one in my grandads shed They allways hear or spot the door opening now thanks to these Give me a bit of extra pice of mind knowing they are alerted when someone opens their side door

So easy to set up! Love this for peace of mind with having it on my toddler’s door. She was just switched to a toddler bed so this allows us to know if she would open her bedroom door. Sound volume is adjustable and loud enough to wake you out of sleep.

Works perfect in a 2100sf house. Cheap, easy to install, and plenty of sound and volume options.

This is EXACTLY what I was looking for. Most devices the alert makes a very piercing sound. This actually has different friendly sound setting alerts. Chimes, door bell “ ding dong” and musical tones. ( even holiday! ) I care for a friend with dementia and this is great because it lets me know when she enters / leaves her bedroom and the bathroom. I bought the 3 pack with 2 plug in alerts that I can easily set up in different locations This is also great for young children to alert you if they open a door. Teenagers so you know when they arrive home safely at night if you fall asleep. For any reason to alert you if something opens!

LOVE THIS THING!!!! The only downfall is that the housing is held onto the mounted part by these tiny clips. And removing the housing so you can mount it on the gate was not super easy. This was more operator error however a design improvement could easily make this the best purchase ever! None-the-less, we use it (broken housing and all) and still love it!

They are very clear on sound and easy to install. Only complaint is that they have to be set very close to each other and my doors with trim make it difficult. I will have to put a shim on one side to equal the other.