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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

  • Large tes/silence button
  • 10 years sealed battery
  • EN 14604 Certified
  • Large detection area
£35.99 Regular price £41.99 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: S05-A-5pcs

10 Years Battery Smoke Alarm New (5PC)

  • 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-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-5pcs

10 Years Sealed Battery Smoke Alarm

  • Easy test/silence button
  • 10 years sealed battery
  • EN 14604 Certified
  • BS 5839-6:2019 Grade F1
£54.99 Regular price £69.99 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: BD-1G10S1C1G2H1C-R8

16-in-1 All-in-One Home Safety & Camera Kit

  • 10-Room Coverage
  • Watch & Protect
  • Full Threat Defense
  • Instant Phone Alerts
£460.99 Regular price £550.99 Sale price
Unit price  per 
SKU: KIT1-1S1C1H-R8

3PC Interlinked Smoke & CO & Heat Alarm

  • Pre-connected set
  • Link up to 24 devices
  • Simple installation
  • BS 5839-6: 2019 Grade F1
£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

  • Pre-connected set
  • High performance
  • 5 years warranty
  • Scottish 2022 Legislation
£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

4PC Interlinked Smoke & CO & Heat Alarm Set New

  • 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: 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 kit
  • Connect to 24 devices
  • 5 years warranty
  • BS 5839-6:2019 Grade F1
£79.99 Regular price
Unit price  per 
SKU: S01-2pcs

5 Years AA Battery Standalone Smoke Alarm

  • Simple test/silence
  • Easy installation
  • Replaceable Battery
  • EN 14604 Standard
£18.99 Regular price £35.99 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: KIT1-3S1C1H-R8

5PC Interlinked Smoke & Carbon Monoxide & Heat Alarm

  • Wireless interconnected
  • BS 5839-6: 2019 Grade F1
  • Lithium Battery Powered
  • 5 Years Warranty
£89.99 Regular price £149.99 Sale price
Unit price  per 
SKU: S04-R8(5pcs)

5PC Interlinked Smoke Alarms

  • Pre-linked kit
  • Easy installation
  • Standard: EN 14604
  • BS 5839-6:2019 Grade F1
£67.99 Regular price £89.99 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: 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: BD-1G5S1H1C1C-R8

9-in-1 Home Guardian & Vision Elite Kit

  • Visual Confirmation
  • Triple-Threat Defense
  • Whole-Home Sync
  • Instant Smart Alerts
£350.99 Regular price £480.99 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: DHI-HY-FT431LFP-TD1F4

Flame Detection Bullet Network Camera

  • 4MP High-definition Video
  • Visual and Thermal Image
  • Supports IP67 protection level
  • Support max. 256 G Micro SD card
£299.99 Regular price £349.99 Sale price
Unit price  per 
SKU: DHI-HY-FT431LDP-MB

Flame Detection Eyeball Network Camera

  • 4MP High-definition Imaging
  • Visual and Thermal Image Output
  • Supports IP66 Protection Level
  • Sturdy Metal Base
£219.99 Regular price £319.99 Sale price
Unit price  per 
SKU: HY-FT431LD

Flame Detection Network Camera Pro

  • 4MP High-definition Imaging
  • Visual and Thermal Image Output
  • Intelligent Flame Tracking
  • Smooth Plastic Base
£199.99 Regular price £299.99 Sale price
Unit price  per 
SKU: KIT2-1G10S-R8_GB

Gateway and 10PC Smoke Alarms

  • Smart Home Security
  • Ultra Loud Sound
  • Magnetic Pads Included
  • Locate Alarm with APP
£169.99 Regular price £179.99 Sale price
Unit price  per 
SKU: BD-1G3S1C1H-R8

Gateway and 3 Smoke & 1 CO & 1 Heat Alarm

  • Wireless Interconnection
  • 5 years warranty
  • Multiple detection devices
  • Smart home fire safety
£129.00 Regular price £149.00 Sale price
Unit price  per 
SKU: BD-1G3S1H-R8

Gateway and 3 Smoke & 1 Heat Alarm

  • Wireless Interconnected
  • Human Voice Alerts
  • Multiple Detection Devices
  • Smart Home Fire Safety
£89.99 Regular price £99.00 Sale price
Unit price  per 
SKU: BD-1G3S1H1E-R8

Gateway and 3 Smoke & 1 Heat Alarm & 1 Temperature Sensor

  • Interlinked Safety
  • Mould Prevention
  • 10-Year Battery
  • UK Compliant
£99.99 Regular price £109.99 Sale price
Unit price  per 
SKU: BD-1G5S1H-R8

Gateway and 5 Smoke & 1 Heat Alarm

  • Multiple Detection Devices
  • Magnetic Stickers Included
  • Linked Detectors
  • Smart Home Fire Safety
£114.99 Regular price £159.99 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: KIT2-1G5S-R8_GB

Gateway and Smoke Alarms

  • Link up to 24 devices
  • Ultra Loud Sound: 85dB
  • Human Voice Notification
  • Wireless Interconnection
£99.99 Regular price £129.99 Sale price
Unit price  per 
SKU: BD-1G10S3E-R8

Home Guardian & Wellness Elite Kit

  • Instant App Alerts
  • Total Coverage
  • Smart Monitoring
  • 10 Years Battery
£219.99 Regular price £259.99 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: DHI-HY-GA20A-R8-GB

Interlinked Methane Gas Alarm

  • Audible and Visual Alarm
  • Connect to Gateway
  • Immediate Response
  • Link up to 24 devices
£45.00 Regular price £55.00 Sale price
Unit price  per 
SKU: S04-R8

Interlinked Smoke Alarm

  • Wireless interconnected
  • Link up to 24 devices
  • 10 years battery lifetime
  • BS 5839-6:2019 Grade F1
£24.00 Regular price
Unit price  per 
SKU: S05-R8-A(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-A(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 

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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