Defender Door Handle Alarm – Wireless Hanging Intruder Alarm for Metal Door Handles – 125dB Siren Movement Detector – Door Knob Touch Sensor
£9.95






Price: £9.95
(as of Jun 10, 2025 12:02:25 UTC – Details)
Product Description



What’s in the box: 1 x Defender Door Handle Alarm 3 x AAA Batteries 1 x Instruction Sheet
Defender Door Handle Alarm
Wireless Door Hanging Siren
The Defender Door Handle Alarm is a clever detection alarm that uses magnetic field technology to detect when someone is about to open the door or touches the door handle. Once triggered, the alarm will sound a powerful 125dB siren for 30 seconds, repeatedly if constantly attempted.
A perfect addition to home security, its versatility and ease of use means it can be used as and when required, in any room that needs protecting.
Loud 125dB Siren Metal Door Handles Only Sensitivity Adjustment; Low, Medium or High 6 Second Exit Delay Quick & Simple To Use Colour: White Dimensions: 19.2cm x 7cm x 2.2cm Battery Operated: 3 x AAA Included

QUICK & EASY TO INSTALL
• No installation required – simply take the unit out of the box, remove the battery tab and then attach to your internal doors.

SENSITIVITY ADJUSTMENT
• Once triggered, the alarm will sound a powerful 125dB siren for 30 seconds, repeatedly if constantly attempted.
• The unit has an easy-to-use sensitivity adjustment; low, medium or high, designed for user preference.

PORTABLE DEVICE
• A lightweight and portable intruder alarm – the perfect travel companion.
• The portable nature means the unit can be moved to any room within your property.

Boost your home security!
A device that is designed to detect potential intruders before they even open the door.
Thieves often rely on easy targets, and will often check for unlocked doors.
The magnetic field surrounding the unit detects potential intruders.
A perfect addition to home security, its versatility and ease of use means it can be used as and when required, in any room that needs protecting.

Suitable for many situations:
HomesHotel RoomsTravellingShared Accommodation Student Halls
DEFENDER DOOR HANDLE ALARM – The alarm uses magnetic field technology to detect door opening or handle touching. When triggered, it sounds a 125dB siren for 30 seconds, repeating if necessary.
SENSITIVITY ADJUSTMENT – The unit has an easy-to-use sensitivity adjustment: low, medium, or high, designed to accommodate user preferences.
QUICK & EASY TO INSTALL – No installation is required – simply remove the unit from the box, pull out the battery tab, and attach it to your internal doors.
PORTABLE DEVICE – A lightweight and portable intruder alarm, perfect for travel. The unit can be easily moved to any room within your property.
ADDITIONAL SECURITY – A perfect addition to your home security, its versatility and ease of use mean it can be utilised as needed in any room that needs protection. Thieves often rely on easy targets, and will often check for unlocked doors.
Customers say
Customers find the door handle alarm effective, simple to use, and consider it a great addition to home security, providing peace of mind. The noise level receives mixed feedback – while the sound quality is clear, some find it too loud. The sensitivity and build quality also get mixed reviews, with some finding it very sensitive to movement while others report it being badly made.
11 reviews for Defender Door Handle Alarm – Wireless Hanging Intruder Alarm for Metal Door Handles – 125dB Siren Movement Detector – Door Knob Touch Sensor
Add a review
£9.95
Sam Thorne –
Absolutely brilliant
I’ve now had the door alarm for almost a year (29th May 2024). Even tho I still think it’s the dogs bollocks, the one thing I do find annoying is the alarm sounding (one burst) when batteries are getting flat. A single bleep would of been fine.
Doogie –
Loud alarm when touching door handle
We run a holiday let and health & safety dictates all doors exiting the property must be keyless – so people can get out at any moment. We were concerned about our guests who have dementia or young children who may decide to explore alone. We bought 2 of these for the bedroom area (it’s a bungalow) and ask guests if they would like to use them. The sensitivity levels are good – the highest sounded the alarm when my hand was a couple of mm away. The alarm is loud! These are easy to add or remove to door handles, and very simple to switch on and off, and to adjust the sensitivity.I didn’t test how well they work if someone trys to pull the handle from outside – I will test that at some point as I guess that’s what most people want them for.
Tatiana L. –
Useful tool, but can make noise at night for no reason
The item is very sensitive to any movement and sometimes makes noise. Otherwise very useful.
Mrs Hedges –
Defender door handle alarm
I wanted a product that could alert me instantly if anyone tried breaking into my house, recently there was an incident on my road where a gang of men carrying weapons tried breaking into a house. The door defender hangs on my UPVC door handle. It has various sensitivity levels at which it can set. I have only needed to try the lowest level 1, as soon as I am within about a hands width away from the door defender when itâs armed, it goes off. I donât even need to touch the door handle for it to go off. The alarm is loud but not as loud as say an outdoor alarm. It has a small red light that shows the device is armed. I suspect my neighbours across the road couldnât hear it but next door could. I feel more comfortable knowing that if someone did try breaking in at night, I would hear the alarm. I now have these on all my outside doors.
Les –
It works
Just the job bang-on can’t fault it .
William Beveridge –
alarm
It is good to have an alarm, it gives you piece of mind especially on these dark nights.
Sabz –
Waste of money!
Total waste ofMoney! As a victim of rape in a new property living alone as a female I can honesty say this product had me petrified! It woke me up at 3am on first night in the house through ear plugs so itâs loud! But I was laid awake then in the pitch black petrified thinking someone was in the house for half an hour before I dare move. I was the definition of petrified ans routed to the spot my heart beating so loud I could hardly think. It then went off AGAIN! Before I moved. I must point out it obviously turns itself off as it woke me up then turned off then started again half hour later! NO ONE WAS THERE! So I was crying petrified for NO REASON! Total waste of money as how can you use something that is going to go off randomly in the middle of the night! I see others have had the same issue! This product should not be allowed to be sold as I basically paid the money for something I canât use that nearly gave me a heart attack in the process! Money I should of just kept!
Judith J. –
Door alarm.
This is a brilliant little alarm very pleased with it.
S.J. –
Eigentlich ein super Produkt! – laut, einfach anzubringen, – funktioniert hervorragend! – Eigentlich…. – da es in meinen Augen ein groÃes Manko gibt!- er lässt sich nicht ausschalten ohne Alarm auszulösen!Der Alarm wird angebracht, schaltet man ihn ein, so hat man 6 Sekunden Zeit um sich auf mehrere centimeter zu entfernen. Danach ist der Alarm aktiv. Nähert man sich nun dem Alarm auf wenige Zentimeter (jemand versucht die Türklinke auch nur anzufassen(auch von auÃen) ) geht der Alarm los! – eigentlich super.. aber abschalten geht eben auch nur indem man ihn anfasst und somit löst man immer dabei Alarm aus!
Amazon Kunde –
Diese Alarm tuer griff ist leider nicht ok Knopf lässt sich nicht verstellen und spring viel zu spät an werde ich zurück schicken
E.R. –
Der Türalarm geht bereits los, wenn man ihn einschaltet! So sollte das nicht sein.