SABRE HS-DWA Door or Window Alarm, 1 Pack review
Renters and anyone wanting a cheap, no-fuss first layer of security on vulnerable windows and back doors.
By Tom Calder · Price last checked 20 Sep 2026, 12:29 BST · price-tracked
A simple two-piece contact alarm that does one job well — it sounds a genuinely loud 120dB alert the moment a door or window opens. There's no app, no monitoring and no subscription; it's a basic, battery-powered deterrent, not a security system, and it's priced accordingly. It runs on small LR44 button batteries, so keep spares away from young children.
as of 20 Sep 2026, 12:29 BST · Details
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon.co.uk at the time of purchase will apply to the purchase of this product.ⓘ As an Amazon Associate, PreparedBritain earns from qualifying purchases. We may earn a commission when you buy, or a fee when you request a quote, through our links — it never affects what we recommend. Amazon prices come from Amazon's own product data and show the date and time they were retrieved. Prices at other retailers are checked by us, less often. Prices and stock can change at any time, so always check the retailer's price before you buy.
- Loud 120dB siren is a real deterrent, not a token beep
- Peel-and-stick install in minutes, no wiring or drilling
- Cheap enough to fit one on every downstairs window and door
- No smartphone alert or remote monitoring — you only hear it if you're home or a neighbour does
- Basic adhesive mount can work loose over time on some frame finishes
Who shouldn't buy this
Skip this if you want to know a door's been opened while you're out — it's audible-only with no app or cellular backup, so pair it with a monitored smart system if remote alerts matter to you.
Key specs
| Type | Two-piece door/window contact alarm |
| Siren volume | 120 dB |
| Power | 4x LR44 batteries (included), replaceable |
| Smart features | None — standalone, no app or subscription |
Our rating is a considered spec-and-evidence verdict: we verify every specification against at least two independent sources, re-check the UK price on a schedule where we can track it automatically, and say plainly who a product isn't for. Commissions never change a rating. Read the full methodology →
Alternatives to consider
as of 20 Sep 2026, 12:29 BST · Details
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon.co.uk at the time of purchase will apply to the purchase of this product.as of 20 Sep 2026, 12:29 BST · Details
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon.co.uk at the time of purchase will apply to the purchase of this product.as of 20 Sep 2026, 12:29 BST · Details
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon.co.uk at the time of purchase will apply to the purchase of this product.Want this cheaper?
Prices for 364 tracked products are refreshed daily — last sweep 20 September 2026. Leave your email and we'll tell you when it drops — nothing else.