
Loud enough to be heard
A 90 dB signal sounds the moment the door or window opens, which is loud enough to carry through a house and stop anyone in their tracks. There is no ambiguity about whether you heard it.
Fitted with double-sided tape
Installation is tape and nothing else: no wiring, no tools and no drilling into a frame. You can secure a door in the time it takes to read the instructions.
Works anywhere you put it
Battery power and a compact body mean doors, windows and cabinets are all fair game, at home or away. Vellhaven kept it discreet so it does not announce itself.
Our customers say it better than we can
Frequently Asked Questions
How loud is the alarm?
90 dB, which is a genuinely attention getting level. It warns you immediately of an unauthorised opening rather than making a sound you might miss.
How do I install it?
It mounts with double sided tape, so there are no tools and no wiring. Clean the surface, press it on and it is working.
Where can I use it?
Doors, windows and cabinets all suit it. The compact design means it fits discreetly on a frame or a cupboard edge without being obvious.
How is it powered?
It runs on batteries, so it works anywhere without a socket and keeps working during a power cut. Nothing has to be routed or plugged in.
Can I move it later?
Yes. Because it is wireless and tape mounted, it moves from a front door to a window or a travel room without any reinstallation work.
Every Vellhaven order is checked by hand
Nothing leaves our warehouse without a person looking at it first. We check the finish, test the moving parts, and pack each piece so it survives the journey to your door. That's why we not only give guarantees on our service, but also achieve outstanding ratings on platforms like Trustpilot.

