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SKU: DHI-HY-SA20A-10pcs

10 Years Battery Smoke Alarm (10PC)

  • Easily Test/Silence
  • Large Detection Area
  • Hassle-free Installation
  • Certified to BS EN 14604
£129.99 Regular price £159.99 Sale price
Unit price  per 
SKU: DHI-HY-SA20A-2pcs-R

10 Years Battery Smoke Alarm (2PC)

  • Easy Installation
  • Features test and silence button
  • 5 years warranty
  • Certified to BS EN 14604
£21.99 Regular price £25.99 Sale price
Unit price  per 
SKU: DHI-HY-SA20A-5pcs

10 Years Battery Smoke Alarm (5PC)

  • Large detection area
  • Hassle-free installation
  • Certified to BS EN 14604
  • Support mute by controller
£54.99 Regular price £64.99 Sale price
Unit price  per 
SKU: S05-A-3pcs

10 Years Battery Smoke Alarm New (3PC)

  • Simple Installation
  • Insect-proof Design
  • 10 Years Battery Lifetime
  • EN 14604 Compliance
£35.99 Regular price £41.99 Sale price
Unit price  per 
SKU: DHI-HY-SA20A_2pcs_R

10 Years Replaceable Battery Smoke Alarm

  • Long Battery Lifetime
  • Affordable Multi-packs
  • Simple Installation
  • Easily Mute
£21.99 Regular price £25.99 Sale price
Unit price  per 
SKU: DHI-HY-SA30A

10 Years Sealed Battery Smoke Alarm

  • The Landlord’s Choice
  • 10-Year Life Sensor
  • User-Friendly Design
  • BS 5839-6:2019 Grade F1
£13.99 Regular price £15.99 Sale price
Unit price  per 
SKU: DHI-HY-SA30A-10pcs

10 Years Sealed Battery Smoke Alarm (10 PC)

  • The Landlord’s Choice
  • 10-Year Life Sensor
  • User-Friendly Design
  • BS 5839-6:2019 Grade F1
£129.99 Regular price £159.99 Sale price
Unit price  per 
SKU: DHI-HY-MAP10

10PC Magnetic Adhesive Pads

  • Hassle-free Setup
  • Powerful Magnetic Adhesion
  • Suitable for Dry Flat Walls.
  • Compatible with Many Detectors
£16.99 Regular price
Unit price  per 
SKU: S01-2pcs

2-Pack Smoke Alarms | 5-Year AA Battery Included

  • EN 14604 Standard
  • AA Battery Powered
  • Instant Test/Silence
  • Quick DIY Setup

£18.99 Regular price £35.99 Sale price
Unit price  per 
SKU: KIT1-1S1C1H-R8

3PC Interlinked Smoke & CO & Heat Alarm

  • 3-in-1 Pre-Linked Kit
  • UK Law Compliant
  • Interlink Up to 24 Units
  • Instant Installation
£59.99 Regular price £69.99 Sale price
Unit price  per 
SKU: S04-R8-3pcs

3PC Interlinked Smoke Alarms

  • Link up to 24 devices
  • Simple test/silence button
  • Support remote control
  • BS 5839-6:2019 Grade F1
£49.99 Regular price £59.99 Sale price
Unit price  per 
SKU: KIT1-2S1H-R8

3PC Interlinked Smoke and Heat Alarm

  • Scottish 2022 Law Compliant
  • Pre-Connected Set
  • Premium Quality
  • 5-Year Warranty
£49.99 Regular price £59.99 Sale price
Unit price  per 
SKU: BD-2S1C1H-R8

4PC Interlinked Smoke & CO & Heat Alarm

  • Wireless Interconnected
  • Battery powered
  • 5 years warrantty
  • BS 5839-6: 2019 Grade F1
£89.99 Regular price £109.99 Sale price
Unit price  per 
SKU: BD-2S1C1H-R8-NEW

4PC Interlinked Smoke & CO & Heat Alarm Set New

  • Interlinked Safety
  • BS 5839-6 Certified
  • 10yr Battery Powered
  • Gateway Compatible
£89.99 Regular price £109.99 Sale price
Unit price  per 
SKU: S04-R8-4pcs

4PC Interlinked Smoke Alarms

  • Wireless connected kit
  • 10-year battery lifetime
  • Simple test/silence button
  • 5 years warranty
£59.99 Regular price £79.99 Sale price
Unit price  per 
SKU: BD-3S1C-R8

4PC Interlinked Smoke and Carbon Monoxide Detectors

  • Wireless Interconnected Bundle
  • One sounds, all sound
  • Long radio signal range
  • 5 years warranty
£79.99 Regular price £99.99 Sale price
Unit price  per 
SKU: BD-3S1H-R8

4PC Interlinked Smoke And Heat Alarms

  • Wireless Interconnected
  • Connect to 24 Devices
  • 5 Years Warranty
  • BS 5839-6:2019 Grade F1
£79.99 Regular price
Unit price  per 
SKU: S01

5 Years AA Battery Standalone Smoke Alarm

  • EN 14604 Standard
  • AA Battery Powered
  • Instant Test/Silence
  • Quick DIY Setup

£9.99 Regular price £15.99 Sale price
Unit price  per 
SKU: S01-6pcs

5 Years AA Battery Standalone Smoke Alarm (6PC)

  • Simple test/silence
  • Easy installation
  • Replaceable Battery
  • EN 14604 Standard
£54.99 Regular price £95.99 Sale price
Unit price  per 
SKU: DHI-HY-MAP05

5PC Magnetic Adhesive Pads

  • Strong Magnetic Power
  • Durable Usage
  • No Drill Installation
  • For Multiple Detectors
£9.99 Regular price
Unit price  per 
SKU: S04-R8(5pcs)

5x Interlinked Smoke Alarms | 10yr Battery | EN 14604

  • Pre-Linked 5-Pack
  • Rapid Installation
  • Standard: EN 14604
  • BS 5839-6:2019 Grade F1
£67.99 Regular price £89.99 Sale price
Unit price  per 
SKU: BD-5S1C

6PC Smoke and Carbon Monoxide Alarms Bundle

  • 10 Years Battery Lifetime
  • 5 Years Warranty
  • Easily test and silence
  • Multiple Detection
£69.00 Regular price £107.99 Sale price
Unit price  per 
SKU: S05-A-10pcs

Bulk 10-Pack: 10 Years Battery Smoke Alarm New

  • Clear LED Indicators
  • Large Silence Button
  • One-Hand Installation
  • Certified to EN 14604
£109.99 Regular price £159.99 Sale price
Unit price  per 
SKU: S05-A-5pcs

Bulk 5-Pack: 10 Years Battery Smoke Alarm New

  • Clear LED Indicators
  • Large Silence Button
  • One-Hand Installation
  • Certified to EN 14604
£54.99 Regular price £64.99 Sale price
Unit price  per 
SKU: DHI-HY-SA30A-5pcs

Bulk 5-Pack: 10 Years Sealed Battery Smoke Alarm

  • The Landlord’s Choice
  • 10-Year Life Sensor
  • User-Friendly Design
  • BS 5839-6:2019 Grade F1
£54.99 Regular price £69.99 Sale price
Unit price  per 
SKU: C06

Carbon Monoxide Alarm 3 IN 1 With 10 Years Battery

  • Carbon Monoxide Detection
  • Temp & Humidity Sensing
  • Blue Backlight Function
  • BS 5839-6:2019 Grade F1
£19.99 Regular price £25.99 Sale price
Unit price  per 
SKU: DHI-HY-GC20C

Carbon Monoxide Detector With 10 Years Battery

  • Digital Display Screen
  • Three Indicator Lights
  • Low Battery Warning
  • Certified to EN 50291
£21.99 Regular price £27.99 Sale price
Unit price  per 
SKU: C03

Carbon Monoxide Detector With 10 Years Battery

  • LED Colored Indicators
  • 10 Years Battery Lifetime
  • Easy Test/Silence
  • EN 50291 Certified
£15.99 Regular price £22.99 Sale price
Unit price  per 
SKU: DHI-HY-ES10A-R8

Environmental Sensor (Hygrometer)

  • Temp. & Humidity Sensing
  • Stable Wireless Connection
  • 10-year lithium battery
  • Alert Notification
£15.99 Regular price £20.00 Sale price
Unit price  per 
SKU: KIT1-1G3E-R8-EU

Gateway and Environmental Sensor

  • Free App Service
  • Temperature & Humidity Detection
  • Indoor Thermometer Hygrometer
  • Stable Wireless Connection
£59.99 Regular price £69.99 Sale price
Unit price  per 
SKU: C02-R8

Interlinked Carbon Monoxide Alarm

  • EN 50291 Certified
  • Digital Display
  • Long radio signal range
  • Wireless interconnected
£29.99 Regular price £36.00 Sale price
Unit price  per 
SKU: C02-R8(2pcs)

Interlinked Carbon Monoxide Alarm (2PCS)

  • EN 50291 Certified
  • Digital Display
  • Long radio signal range
  • Wireless interconnected
£54.99 Regular price £72.00 Sale price
Unit price  per 
SKU: C02-R8(4pcs)

Interlinked Carbon Monoxide Alarm (4PCS)

  • EN 50291 Certified
  • Digital Display
  • Long radio signal range
  • Wireless interconnected
£99.99 Regular price £144.00 Sale price
Unit price  per 
SKU: H01-R8(2pcs)

Interlinked Heat Alarm (2PCS)

  • Wireless interconnected
  • Low battery warning signal
  • Link up to 24 devices
  • BS 5839-6:2019 Grade F1
£41.99 Regular price £48.00 Sale price
Unit price  per 
SKU: H01-R8(4pcs)

Interlinked Heat Alarm (4PCS)

  • Wireless interconnected
  • Low battery warning signal
  • Link up to 24 devices
  • BS 5839-6:2019 Grade F1
£75.99 Regular price £96.00 Sale price
Unit price  per 
SKU: H01-R8

Interlinked Heat Alarm With 10 Years Battery

  • Wireless interconnected
  • Low battery warning signal
  • Link up to 24 devices
  • BS 5839-6:2019 Grade F1
£22.99 Regular price £24.00 Sale price
Unit price  per 
SKU: S04-R8

Interlinked Smoke Alarm

  • 10-Year Battery Life
  • Wireless Interconnect
  • Link Up to 24 Devices
  • BS 5839-6:2019 Grade F1
£24.00 Regular price
Unit price  per 
SKU: S05-R8-B (3pcs)

Interlinked Smoke Alarm New (3PC)

  • Wireless connected kit
  • 10-year battery lifetime
  • Compliance Standard: EN 14604
  • Large test and silence button
£49.99 Regular price £59.99 Sale price
Unit price  per 
SKU: S05-R8-B(4pcs)

Interlinked Smoke Alarm New (4PC)

  • Wireless connected kit
  • 10-year battery lifetime
  • Compliance Standard: EN 14604
  • CE, UKCA marked
£59.99 Regular price £79.99 Sale price
Unit price  per 
SKU: S05-R8-B(5pcs)

Interlinked Smoke Alarm New (5PC)

  • 10-Year Lithium Battery
  • Wireless Interconnection
  • Certified Safety
  • 5-Year Warranty
£79.99 Regular price £99.99 Sale price
Unit price  per 
SKU: S05-R8-A

Interlinked Smoke Alarm New S05-R8-A

  • Decade of Protection
  • No Wiring Needed
  • Interlinked Security
  • EN 14604 certified
£22.99 Regular price £24.00 Sale price
Unit price  per 
SKU: S05-R8-B

Interlinked Smoke Alarm New S05-R8-B

  • Wireless interconnected alarm
  • Connect to gateway
  • 10-year battery lifetime
  • EN 14604 Certified
£22.99 Regular price £24.00 Sale price
Unit price  per 
SKU: DHI-HY-WL13A-R8

Interlinked Water Leak Detector

  • Drip & Leak Detection
  • IP65 waterproof grade
  • Audible & Visual Alert
  • Two Installation Methods
£24.00 Regular price
Unit price  per 
SKU: DHI-HY-MAP01

Magnetic Adhesive Pad

  • Hassle-free Installation
  • Compatible with Various Alarms
  • Secure Attachment
  • Durable materials
£2.99 Regular price
Unit price  per 
SKU: DHI-HY-SA2FA (5pcs)

Smart WiFi Smoke Alarm With Replaceable Battery

  • CR123A lithium batteries
  • CE and BS EN 14604: 2005
  • 24/7 Safety Network
  • BS 5839-6:2019 Grade F2
£99.99 Regular price £119.99 Sale price
Unit price  per 
SKU: H01

Standalone Heat Alarm With 10 Years Battery

  • Class A1 Fire Detection
  • 10-year Battery Lifetime
  • Easy Test and Silence
  • BS 5839-6:2019 Grade F1
£17.99 Regular price £23.99 Sale price
Unit price  per 
SKU: WL1

Standalone Water Leak Detector | 3-Year Battery Life

  • Drip & Leak Detection
  • IP65 Waterproof Rating
  • Audible & Visual Alert
  • Standalone Reliability
£13.99 Regular price
Unit price  per 
SKU: DHI-HY-GW01A

Wireless Gateway

  • Smart Multi-detector hub
  • 4 LED Indicators
  • Human Voice Broadcasting
  • Dual Communication: WiFi and Ethernet
£54.99 Regular price
Unit price  per 

Alarm Guides Before You Buy

Alarm Guides Before You Buy

Smoke Alarms

Wisualarm offers smoke alarms, which adopt the advanced split-spectrum technology to reduce the false alarm for peace of mind. Check our various smoke alarms.

How do Smoke Alarms Function?
Smoke alarms typically consist of two main types: ionization and photoelectric. Ionization smoke alarms contain a small amount of radioactive material that ionizes the air, while photoelectric smoke alarms use a light beam to detect smoke particles. When smoke enters the alarm, it triggers a sensor that sets off the alarm, alerting occupants to the potential danger.

Interlinked Smoke Alarms

Interlinked smoke alarms are a network of smoke detectors that are connected wirelessly or through a hardwired system. When one alarm detects smoke or fire, it triggers all the interconnected alarms in the network to sound simultaneously. This interconnected system ensures that everyone in the house is alerted to the danger, no matter where they are located.

Smoke Alarms Purchasing Tips

1. Ensure products comply with local British fire protection standards. Grade F: Battery operated, stand-alone smoke detectors and heat alarms. Primarily intended for domestic, owner-occupied housing. F Grade alarms with interlink (especially with 10-year sealed lithium batteries) may be used as Grade D in some cases. Always verify with the relevant authority.
2. Check the power source. CR123A Batteries: referred to simply as 123 batteries, are high power lithium based batteries used extensively in security alarm systems. An AA battery is a standard size of dry cell battery commonly used in portable electronic devices.

Multi-Sensor Smoke Alarms

Combining various smoke detection sensor technologies enhances the capabilities of each technology. Wisualarm also offer heat alarm, commonly used in kitchen and carbon monoxide alarm to safeguard against fire and carbon monoxide risks. Beside, for gas leaking and carbon dioxide detection, Wisualarm also prepared the solutions for that.

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