SABRE HS-DWA Door/Window Alarm review
SABRE HS-DWA Door or Window Alarm, 1 Pack
By Tom Calder
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.
- Best for
- Renters and anyone wanting a cheap, no-fuss first layer of security on vulnerable windows and back doors.
- Skip it if
- You want to know a door's been opened while you're out
as of 5 Nov 2026, 01:07 GMT · 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.We earn a commission if you buy through the retailer links on this page. It doesn't change our verdict. How we make money →
Researched, not used. We haven't used this product. This review is built from the maker's specifications, owner reports and our own sizing.
What we like
- 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
Worth knowing
- 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
ⓘ 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. When two products are close, commission can decide which one we pick. A clearly better product always wins. 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.
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 |
This is a Researched review: we haven't used this product. We check 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 it isn't for. Commissions never change a rating.
If this isn’t the one
Best for Homeowners wanting whole-house DIY alarm coverage — doors, windows, motion, an indoor camera and an outdoor siren — set up in one go rather than bought piecemeal.
as of 5 Nov 2026, 01:07 GMT · 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.
Best for Renters and homeowners who want an affordable, self-fit smart alarm layer without a monitoring contract
as of 5 Nov 2026, 01:07 GMT · 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.
Best for Households wanting a self-monitored, no-subscription smart alarm that also covers a shed, garage or side access via its 200m wireless range.
as of 5 Nov 2026, 01:07 GMT · 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.Free alerts for your home
Home Alerts emails you when a power cut, a Met Office warning or a flood warning covers your postcode. Free for your own home. Sign up in a minute.
Start free →