Best Alarms Deals Online in the UK (25 Deals Found)

Last Updated - 30/05/2026 Sort By:

Best Choice
Powbee

New
Personal Alarms For Women - 3 Pack Reusable Police Approved 150DB LOUD Security Alarms Keychain with LED Light, Small Pe
Personal Safety Protection: An attacker's worst enemy is attention. This personal alarm is designed to help you to ask f

£9.89 £12.86
DTL

New
DTL Digital Alarm Clock LED Display with Temperature Big LCD Digit Display Larger LCD Backlit Display Snooze Smart Brigh
【UK Brand】– Born in the UK and built on trust, we believe a great product is just the beginning. A digital clock thought

£6.99
New
Carbon Monoxide Alarm LCD Display 10 Year life CO Detector CE Certified

£15.89
TabTime

New
TabTime Vibrating Alarm Wristband (Black) - Silent Alarm Watch - with up to 10 Personal or Pill Reminders per Day
Discreet Vibrating Reminders – Stay on schedule with up to 10 silent vibrating alarms per day, perfect for medication, h

£24.99
New
NCS V3 TALKING MOTORBIKE MOTORCYCLE ALARM & IMMOBILISER REMOTE CONTROL START
SIMPLE TO USE. "Disarm" to switch off. That's it! Other alarms connect purely to the ignition and are very easily bypass

£24.99
Sumwitum

New
Personal Alarms For Women, Reusable Police Approved 150DB Super-Loud,Personal Alarms with LED Light, Small Personal Secu
【Keeps You Safe】Personal Alarms play a huge role in emergency situations,150dB super-loud sound, which can reach up to 7

£7.99
Best Value
DTL

New
DTL Digital Alarm Clock LED Display with Temperature Big LCD Digit Display Larger LCD Backlit Display Snooze Smart Brigh
【UK Brand】– Born in the UK and built on trust, we believe a great product is just the beginning. A digital clock thought

£6.99 £9.99
New
Duracell 9V Battery LR22 Plus Alkaline Batteries, 6LR61 MN1604, PP3, Smoke Alarm
FIRE EXTINGUISHER. 🔋Duracell Plus 9V Alkaline Battery. Duracell D Battery LR20 Plus Power Alkaline Batteries, MN1300 MX

£449.99
26% Off
GOLOZA

New
GOLOZA Digital Alarm Clock for Bedrooms with Modern Curved Design, Conspicuous Blue LED Numbers, 6 Levels Brightness, 2
LARGE & CLEAR LED DISPLAY WITH 5 DIMMER +OFF -- If you wear glasses, you may want a digital clock with a large display.

£13.98 £18.99
New
Refuge Alarm Outstation, Green Surface Mount | Type B | EVC302GS
They are also available in a more attractive brushed stainless steel finish, as either a surface mount unit or a flush m

£124.46
LATEC

New
LATEC Digital Alarm Clock with Big LED Temperature Display, Bedside Clock with 10 Alarm Sounds, 4 Levels Adjustable Brig
Large LED Display: This Digital Alarm Clock features a 5.6inch large LED mirror display, making it easy to read; One of

£19.99
YsyYey

New
YsyYey Analogue Alarm Clock, Twin Bell Alarm Clock, Extra Loud for Heavy Sleepers,No Ticking, Battery Operated with Nigh
[WAKE-UP GUARANTEED FOR HEAVY SLEEPERS] The classic twin bell design with powerful hammer mechanism delivers an extra lo

£12.99
New
Quartz Alarm Clock With Night Light No Tick Snooze Silent Small Bedside Clock UK
Silent operation with no annoying ticking sound allows you to sleep peacefully at night. No Ticking Sound. When the alar

£4.99
aboveClock

New
aboveClock Digital Alarm Clock, Wooden Bedside Clock with Large LCD Backlit Display, Temperature, Snooze Function, Brigh
⏰【Smart Backlight, Clear Night View】Built-in light sensor automatically adjusts screen brightness for easy viewing in lo

£17.72 £18.98
New
SENSOR MOTION PIR WIRELESS ALARM WITH 2 REMOTE CONTROLS SHED GARAGE HOME CARAVAN
Ideal for use in entryways, garages, sheds, or any area needing extra security. Garden shed - motion sensing alarm. Gard

£5.99
21% Off
CPVAN

New
CPVAN Indoor Motion Sensor Alarm with Siren, Remote Control Wireless Infrared DIY PIR Motion Detector Burglar Alarm Syst
CPVAN BRAND YOU CAN TRUST - The team at CPVAN SECURITY has dedicated more than 10 years and thousands of hours making th

£18.99 £23.99
New
Carbon Monoxide Detector Warning Alarm Sensor LED Digital Battery Powered
Type Carbon Monoxide Detector Alarm. High-Precision Electrochemical Sensor – Accurate detection of harmful carbon monoxi

£5.44
New
Wireless Door Alarm Shed Garage Caravan Burglar Home Security Keypad Loud Alarm
●INSTANT-----When the switch is in the INSTAN state, enter the password + "#" to turn on the function. After 10 seconds,

£6.99
New
Police Approved Loud Alarm Personal Panic Rape Attack Safety Security Alarm *
Emits a piercing 140dB sound — loud enough to be heard from a long distance, effectivelyscaring off potential attackers

£3.99
New
Diem Angling Bite Alarm & Bankstick Set
Diem Bite Alarm & Bankstick Set. - Bite alarm and battery. - A hi-tech nite alarm system for any angler looking to relax

£9.99
New
Wireless PIR Motion Sensor Alarm with 2 Remote Control Shed Home Garage Security
Built in PIR motion sensor. The motion detector power by 4 AA batteries (not included). When the alarm is triggered,it w

£4.99
New
Loud Alarm Wireless Vibration Alarm w/Remote Control Anti-Theft Security Alarm ✅
It provides a loud alert to help prevent theft and enhance security. With its compact and lightweight design, it can be

£4.99
New
Kidde 5CO - 10 Year Life LED Carbon Monoxide Detector / CO Alarm with Batteries
The Kidde 5CO carbon monoxide alarm features a 10 year sensor life and is supplied with 2 x Duracell AA alkaline batteri

£15.12
New
Wireless Motion Sensor Alarm Detector Indoor Outdoor Garage UK Stock
Itswireless design makes installation quick and hassle-free—no wiring or complicated setup required. The detector is com

£5.99
New
Heavy Duty Reversing Alarm 12-24V 3 Wire With Night Silent Facility/Function
12-24V Heavy Duty Reversing Alarm With Night Silent Facility/FunctionSuitable for any 12V-24V systemMinimum output of 96

£21.99

25 Alarms deals are available from: Amazon, eBay stores, starting from £3.99.
The biggest discount we found is 30% on DTL Digital Alarm Clock LED Display with Temperature Big LCD Digit Display Larger LCD Backlit Display Snooze Smart Brightness Sensor for Bedroom Home Office and Travel (White) at Amazon.
The lowest price we found is £3.99 while the highest is £449.99.
Prices for the best Alarms deals average at £33.85.
Last updated on May 30, 2026.
We scanned these quality online stores and more to deliver you with the best offers online available for Alarms.