Acoustic vs vibration glass break sensor
Updated: 20.10.2026
You have two amazon.co.uk tabs open, and both say glass break. One is a listener on a shelf. The other is a siren you stick to the pane. An acoustic sensor listens in the room. A vibration alarm feels the surface it is fixed to. This page is that acoustic vs vibration glass break sensor choice, and it depends on whether you already have a hub. The [glass break detector comparison](/hub/burglar-protection/glass-break-detector) holds the five listings, from £8.10 to £34.99. A qualifying purchase can earn a commission at no extra cost to you.
You have two amazon.co.uk tabs open, and both say glass break. One is a listener on a shelf. The other is a siren you stick to the pane. An acoustic sensor listens in the room.
You have two amazon.co.uk tabs open, and both say glass break. One is a listener on a shelf. The other is a siren you stick to the pane. An acoustic sensor listens in the room. A vibration alarm feels the surface it is fixed to. This page is that acoustic vs vibration glass break sensor choice, and it depends on whether you already have a hub. The glass break detector comparison holds the five listings, from £8.10 to £34.99. A qualifying purchase can earn a commission at no extra cost to you.
Our top picks
| Badge | Product | Detection | Coverage | System | Note | Price | Offer |
|---|---|---|---|---|---|---|---|
| Best overall |  SimpliSafe SimpliSafe Glassbreak Sensor | Acoustic | One room | SimpliSafe 3rd gen | 7.8 | about £34.99 | View offer |
| Alternative |  Goerpn Goerpn 2-pack window alarm | Vibration | One pane each | No hub | 6.1 | about £14.95 | View offer |
| Best value |  Flintronic Flintronic 4-pack window alarm | Vibration | One pane each | No hub | 7.2 | about £18.99 | View offer |
On this page
What each one is listening or feeling for
The acoustic device in this set is the SimpliSafe Glassbreak Sensor, model 8960, at £34.99. It is not a standalone sensor. You need a third-generation SimpliSafe system, and there is no local siren figure.
Flintronic’s four-pack at £18.99 and Goerpn’s two-pack at £14.95 claim about 130 dB and about 30 seconds, then sensing again. They feel the pane, which is why Goerpn reviews talk about a hard thump or a hit on the case. König’s SEC-AGB10 at £8.10 is the same idea as one unit, with selectable sensitivity and AAA cells you supply.
Jopwkuin at £10.99 claims vibration and a microphone, with no review text. Treat that as unresolved. A contact can tell you the frame opened. It still does not hear glass that breaks while the window stays shut.
One room or one pane
SimpliSafe’s UK page uses about 20 feet when the line is clear, and about 5–10 feet with heavy curtains. The amazon table says a maximum of 10 feet. Either way, the sensor is one room.
A vibration siren covers the pane it is stuck to. Four Flintronic units can sit on four windows. Two Goerpn units cover two. That is why the four-pack is the best value when you want local noise and you have no hub. Sensitivity is not stated as adjustable. UK reviews include a wheelie bin that tripped a unit, and panes that would not trip. SimpliSafe warns about kitchens. One UK review reports no false alarm yet. Keep the maker’s warning. The how to fit a glass break detector page is the mount and the knock.
Glass type changes the answer
SimpliSafe’s UK page limits the acoustic sensor to ordinary single and double pane. Laminated and anti-smash glass are outside that claim, even if you already own the hub. The stick-on listings publish no glass table, and the reviews here do not include a laminated smash. A pad that holds is not evidence the glass will trip it.
A vibration pad still needs to be on the pane, not on the inner frame if you cannot reach the glass. Neither device replaces a contact on a window you leave ajar. The contact sees the opening. The glass-break device is for the smash while the window looks shut. Grade 2 and PD 6662 sit on the glass break detector buying guide. None of the five states BS EN 50131-2-7-1.
Which to choose
Choose model 8960 when you already have a third-generation SimpliSafe system and the glass is ordinary single or double pane. It is 4.7 from 44 reviews, with one CR123A included, and it does nothing without the hub. Four UK texts sit under that headline, and none describes a break-in. Keep it out of the kitchen, or use the lower sensitivity.
Choose the Flintronic four-pack when you have no hub and you want local noise on several panes, at about £4.75 a siren. The Goerpn pair is the alternative for two panes if a hard knock is an acceptable test. Do not choose Jopwkuin to settle the versus. The best glass break sensor page names who each listing is for.
Common questions
Can one acoustic sensor cover every window in the house?
No. SimpliSafe’s own placement is one room, facing the glass, with a shorter distance if curtains are heavy. A closed door blocks the rest of the house. Extra rooms need extra sensors, or a vibration siren on the panes the listener cannot hear.
Does a vibration alarm hear glass in the next room?
No. It feels the surface it is fixed to. A smash next door, or upstairs, will not trip a pad on the kitchen window unless the structure itself shakes enough, which is not a coverage claim you should rely on. One pad, one pane.
What about double glazing versus laminated glass?
Ordinary double glazing is the case SimpliSafe’s UK page allows, and it is the glass these stick-on sirens are sold against, without a printed glass table. Laminated and anti-smash glass are outside the SimpliSafe claim. A stick-on pad has no stated approval for that glass either.
Why do contacts not replace either device?
A contact watches the frame open. A smash through a window that stays latched does not open the contact. You still need something that listens in the room or feels the pane. The contact remains useful for a window you leave ajar. It is not a substitute.
What if the listing claims a microphone and a vibration sensor?
In this set that is the Jopwkuin page, at £10.99, with no review text to show which line is true. Do not treat the mixed bullets as both technologies confirmed. Pick a listing that states one job, then test that job on the glass you have.
Related pages
Sources
Public UK sources. Listing prices, stars, and review counts are from amazon.co.uk, not a live check on 19 October 2026.
- BS EN 50131-2-7-1 — indoor acoustic glass-break detectors (retrieved 19 October 2026)
- NSI Bulletin 0040, PD 6662:2017 — glass-break and shock parts (retrieved 19 October 2026)
- ProtectUK — alarms and CCTV (retrieved 19 October 2026)
- Ask the Police Q75 — audible-only alarms (retrieved 19 October 2026)
- SimpliSafe UK — Glassbreak Sensor (retrieved 19 October 2026)
- Westmorland and Furness Council — alarm noise (retrieved 19 October 2026)
- GOV.UK — 1982 audible intruder alarm code (retrieved 19 October 2026)
- amazon.co.uk listings for the five ASINs in this comparison (retrieved 19 October 2026)