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🚨 Slim, loud, and police-approved — security that fits your lifestyle
The Defender Ultra Slim Window Alarm 2 Pack features a powerful 130dB vibration sensor siren housed in a sleek, ultra-slim design. Easy to install with adhesive pads that double as warning stickers, this battery-powered alarm is police accredited with Sold Secure Gold and Secured by Design certifications, ensuring top-tier reliability. Ideal for windows, doors, and sliding panels, it delivers instant alerts to protect homes, offices, and outbuildings from break-ins.
| ASIN | B0CVNJZX84 |
| Battery Description | Alkaline |
| Battery description | Alkaline |
| Best Sellers Rank | 21,295 in DIY & Tools ( See Top 100 in DIY & Tools ) 18 in Home Security Door & Window Sensors |
| Brand | Defender |
| Colour | Black/Silver |
| Compatible Devices | Home Security System |
| Compatible devices | Home Security System |
| Control Method | Touch |
| Country of Origin | China |
| Customer Reviews | 4.1 out of 5 stars 182 Reviews |
| Included Components | Adhesive Warning Sticker & Batteries |
| Item Dimensions L x W x H | 10L x 51W x 62H millimetres |
| Item Type Name | Window Alert Alarm |
| Manufacturer | Solon Security |
| Model Number | EL00231 |
| Mounting Type | Window Mount |
| Number of Batteries | 6 LR44 batteries required. (included) |
| Part Number | EL00231 |
| Power source | Battery Powered |
| Product dimensions | 10L x 51W x 62H millimetres |
| Sensor Technology | Vibration Sensor |
| Sound Level | 130 Decibels |
| Voltage | 9 Volts (DC) |
A**R
I love it.
I only got it today and stuck them on the bottom right of the downstairs window glass and gave it a few knocks and boom, the alarms went off. Imagine how quickly it would go if a hard object were to hit the glass! So far, so good. And I like how it has the warning sticker to alert intruders. Great product and easy to use, not to mention the slim design and great adhesive. Not expensive and well packaged. Sensitivity is great as the goal is to be alerted for break in or broken glass, not tapping on the glass.
A**S
Unpack & fit as required
Purchased for front/ back door alarm protection after attempted kicking/ break in whilst asleep at night. Excellent value, quality, noise level, functionality & easy to install, much smaller than I was expecting, which gives the user a wide variety of fixing areas, plus this product is Police approved!
M**B
Random alarms
Loud, slimline, easy to turn on and off. However, both can go off randomly, which is a shock of it happens in your bedroom in the middle of the night!! If this keeps happening, I will contact the seller, as my brother had the same.issue and needed replacements. All in all, good value, a helpful security deterrent and they adhere well to windows.
A**R
feel little safer when home alone
good little gadjet any movement on the door and it sets alarm off. feel safer at night .
D**S
They don't work well
These dont work well at all. They require more impact to be triggered.
F**E
Extra deterrent
They easily stick onto glass windows and doors. They have a loud siren but we’ve only tested them, thankfully not had them put to use. They are just another deterrent which create a lot of noise but were recommended by our local neighbour hood watch team.
K**E
Sticky
Self adhesive to stick to windows
J**H
They are very sensitive.
For me they were far too sensitive. They are not adjustable and the slightest touch of a window or door and they went off. Sometimes they just went off in still dry conditions when none was in the room or outside as it was an upstairs window.
P**O
sottili e funzionali
sono molto utili trasmettono sicurezza
D**T
scarsa qualita'
FUNZIONANO MA MEDIOCRI.....
Trustpilot
2 weeks ago
2 days ago