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5PC Interlinked Smoke & CO & Heat Alarm

5PC Interlinked Smoke & Carbon Monoxide & Heat Alarm

  • Wireless Interconnected
  • BS 5839-6: 2019 Grade F1
  • Lithium Battery Powered
  • 5 Years Warranty
£89.99 £149.99

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 £89.99
BS-4S1C1H-R8 Interlinked Alarm Set New

6PC Interlinked Smoke & CO & Heat Alarm Set New

  • Scotland Law Compliance
  • Wireless Interlink
  • 10 Years Battery Life
  • UKCA & CE Marked
£119.99 £139.99

3PC Interlinked Smoke and Heat Alarm

  • Scottish 2022 Law Compliant
  • Pre-Connected Set
  • Premium Quality
  • 5-Year Warranty
£49.99 £59.99

10 Jahre eigenständiger Rauchmelder (versiegelte Lithiumbatterie)

  • Clear LED Indicators
  • Large Silence Button
  • One-Hand Installation
  • Certified to EN 14604
£109.99 £159.99

10 Jahre eigenständiger Rauchmelder

  • The Landlord’s Choice
  • 10-Year Life Sensor
  • User-Friendly Design
  • BS 5839-6:2019 Grade F1
£54.99 £69.99
DHI-HY-SA2FA 5PC WIFI Smoke alarm main pic

Intelligenter WLAN-Rauchmelder

  • Real-Time Mobile Alerts
  • Easy App Management
  • 24/7 Safety Network
  • BS 5839-6:2019 Grade F2
£99.99 £119.99

3PC Interlinked Smoke & CO & Heat Alarm

  • 3-in-1 Pre-Linked Kit
  • UK Law Compliant
  • Interlink Up to 24 Units
  • Instant Installation
£59.99 £69.99

Home Safety Series

Compliant. Interlinked. Reliable.

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DHI-HY-SA20A 10pcs Smoke alarms DHI-HY-SA20A_10_years_life_battery
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18% OFF
SKU: DHI-HY-SA20A-10pcs

10 Jahre eigenständiger Rauchmelder

  • Easily Test/Silence
  • Large Detection Area
  • Hassle-free Installation
  • Certified to BS EN 14604
£129.99 £159.99
DHI-HY-SA20A 2pcs Smoke alarms DHI-HY-SA20A-2pcs-R smoke alarm package
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15% OFF
SKU: DHI-HY-SA20A-2pcs-R

10 Jahre eigenständiger Rauchmelder

  • Easy Installation
  • Features test and silence button
  • 5 years warranty
  • Certified to BS EN 14604
£21.99 £25.99
DHI-HY-SA20A 5pcs Smoke alarms DHI-HY-SA20A_smoke_alarm_one_package_of_five
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15% OFF
SKU: DHI-HY-SA20A-5pcs

10 Jahre eigenständiger Rauchmelder

  • Large detection area
  • Hassle-free installation
  • Certified to BS EN 14604
  • Support mute by controller
£54.99 £64.99
smoke alarm large detection
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SKU: S05-A-3pcs

10 Jahre eigenständiger Rauchmelder (versiegelte Lithiumbatterie)

  • Simple Installation
  • Insect-proof Design
  • 10 Years Battery Lifetime
  • EN 14604 Compliance
£35.99 £41.99
DHI-HY-SA20A 2pcs Smoke alarms DHI-HY-SA20A Standalone Smoke Alarm Package Box
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SKU: DHI-HY-SA20A_2pcs_R

10 Jahre eigenständiger Rauchmelder

  • Long Battery Lifetime
  • Affordable Multi-packs
  • Simple Installation
  • Easily Mute
£21.99 £25.99
Wisualarm smoke alarm one piece DHI-HY-SA20A_smoke_alarm_fewer_false_alarm
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12% OFF
SKU: DHI-HY-SA30A

10 Jahre eigenständiger Rauchmelder

  • The Landlord’s Choice
  • 10-Year Life Sensor
  • User-Friendly Design
  • BS 5839-6:2019 Grade F1
£13.99 £15.99
DHI-HY-SA20A_smoke_alarm_fewer_false_alarm
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SKU: DHI-HY-SA30A-10pcs

10 Jahre eigenständiger Rauchmelder

  • The Landlord’s Choice
  • 10-Year Life Sensor
  • User-Friendly Design
  • BS 5839-6:2019 Grade F1
£109.99 £159.99
S01 AA battery smoke alarm 5-year replaceable battery
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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 £35.99
KIT1-1S1C1H-R8 Interlinked smoke alarm and heat alarm and carbon monoxide alarm pre-connected
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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 £69.99
3PC Interlinked Smoke Alarms
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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 £59.99
3PC Interlinked Smoke and Heat Alarm
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SKU: KIT1-2S1H-R8

3PC Interlinked Smoke and Heat Alarm

  • Scottish 2022 Law Compliant
  • Pre-Connected Set
  • Premium Quality
  • 5-Year Warranty
£49.99 £59.99
4PC Interlinked Smoke & CO & Heat Alarm
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18% OFF
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 £109.99
BS-2S1C1H-R8 Interlinked Alarm Set New BD-2S1C1H-R8_interlinked_detectors_set interconnectivity function
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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 £109.99
4PC Interlinked Smoke Alarms
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25% OFF
SKU: S04-R8-4pcs

4PC Interlinked Smoke Alarms

  • Wireless connected kit
  • 10-year battery lifetime
  • Simple test/silence button
  • 5 years warranty
£59.99 £79.99
Wisualarm 4-teiliges kabelloses Verbindungsset
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Wisualarm 4-teiliges kabelloses Verbindungsset

  • Wireless Interconnected Bundle
  • One sounds, all sound
  • Long radio signal range
  • 5 years warranty
£79.99 £99.99
BD-3S1H-R8 4PC Interlinked Smoke And Heat Alarms
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
S01 Standalone Smoke Alarm Package Box
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5 Years AA Battery Standalone Smoke Alarm

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

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S01 AA battery smoke alarm 5-year replaceable battery
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5 Years AA Battery Standalone Smoke Alarm (6PC)

  • Simple test/silence
  • Easy installation
  • Replaceable Battery
  • EN 14604 Standard
£54.99 £95.99
5PC Interlinked Smoke & CO & Heat Alarm 5PC Interlinked Smoke & CO & Heat Alarm compliant with Scottish Regs
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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 £149.99
5x Interlinked Smoke Alarms | 10yr Battery | EN 14604
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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 £89.99
BS-4S1C1H-R8 Interlinked Alarm Set New BD-2S1C1H-R8_interlinked_detectors_set interconnectivity function
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14% OFF
SKU: BD-6S1C1H-R8-NEW

6PC Interlinked Smoke & CO & Heat Alarm Set New

  • Scotland Law Compliance
  • Wireless Interlink
  • 10 Years Battery Life
  • UKCA & CE Marked
£119.99 £139.99
DHI-HY-SA20A_smoke_alarm_fewer_false_alarm
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SKU: BD-5S1C

Wisualarm 6-teiliges Rauch- und CO-Melder-Set

  • 10 Years Battery Lifetime
  • 5 Years Warranty
  • Easily test and silence
  • Multiple Detection
£69.00 £107.99
smoke alarm large detection
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SKU: S05-A-10pcs

10 Jahre eigenständiger Rauchmelder (versiegelte Lithiumbatterie)

  • Clear LED Indicators
  • Large Silence Button
  • One-Hand Installation
  • Certified to EN 14604
£109.99 £159.99
smoke alarm large detection
Sale
SKU: S05-A-5pcs

10 Jahre eigenständiger Rauchmelder (versiegelte Lithiumbatterie)

  • Clear LED Indicators
  • Large Silence Button
  • One-Hand Installation
  • Certified to EN 14604
£54.99 £64.99
DHI-HY-SA20A_smoke_alarm_fewer_false_alarm
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21% OFF
SKU: DHI-HY-SA30A-5pcs

10 Jahre eigenständiger Rauchmelder

  • The Landlord’s Choice
  • 10-Year Life Sensor
  • User-Friendly Design
  • BS 5839-6:2019 Grade F1
£54.99 £69.99
C06 Standalone Carbon Monoxide Alarm Package Box

Ausverkauft

SKU: C06

10-Jahres-CO-Alarm mit versiegelter Batterie, Temperatur und Luftfeuchtigkeit und LCD-Bildschirm

  • Carbon Monoxide Detection
  • Temp & Humidity Sensing
  • Blue Backlight Function
  • BS 5839-6:2019 Grade F1
£19.99 £25.99
DHI-HY-GC20C Standalone Carbon Monoxide Alarm Package Box
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SKU: DHI-HY-GC20C

Eigenständiger Kohlenmonoxidmelder mit Digitalanzeige (Figaro Sensor)

  • Digital Display Screen
  • Three Indicator Lights
  • Low Battery Warning
  • Certified to EN 50291
£21.99 £27.99
C03 Carbon Monoxide Detector C03 Standalone Carbon Monoxide Alarm Package Box
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30% OFF
SKU: C03

Kohlenmonoxid-Detektor-Alarm

  • LED Colored Indicators
  • 10 Years Battery Lifetime
  • Easy Test/Silence
  • EN 50291 Certified
£15.99 £22.99
DHI-HY-FT431LFP-TD1F4 Flame Detection Bullet Network Camera DHI-HY-FT431LFP flame detection bullet network camera
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14% OFF
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 £349.99
DHI-HY-FT431LDP-MB Flame Detection Eyeball Network Camera DHI-HY-FT431LDP-MB_eyeball_network_camera_description
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SKU: DHI-HY-FT431LDP-MB

Flammendetektionsnetzwerk-Rauchmelderkamera

  • 4MP High-definition Imaging
  • Visual and Thermal Image Output
  • Supports IP66 Protection Level
  • Sturdy Metal Base
£219.99 £319.99
gateway and interlinked environmental sensor DHI-HY-ES10A-R8 Environmental Sensor details

Ausverkauft

14% OFF
SKU: KIT1-1G3E-R8-EU

10 Jahre Temperatur- und Luftfeuchtigkeitssensor mit nicht austauschbarer Batterie

  • Free App Service
  • Temperature & Humidity Detection
  • Indoor Thermometer Hygrometer
  • Stable Wireless Connection
£59.99 £69.99
7 Jahre kabelloser, vernetzter CO-Alarm (austauschbare Batterie)
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SKU: C02-R8

7 Jahre kabelloser, vernetzter CO-Alarm (austauschbare Batterie)

  • Wireless Interlinked Safety
  • Easy Replaceable Battery
  • EN 50291 Certified
  • Digital Display
£29.99 £36.00
7 Jahre kabelloser, vernetzter CO-Alarm (austauschbare Batterie)
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SKU: C02-R8(2pcs)

7 Jahre kabelloser, vernetzter CO-Alarm (austauschbare Batterie)

  • EN 50291 Certified
  • Digital Display
  • Long radio signal range
  • Wireless interconnected
£54.99 £72.00
7 Jahre kabelloser, vernetzter CO-Alarm (austauschbare Batterie)
Sale
30% OFF
SKU: C02-R8(4pcs)

7 Jahre kabelloser, vernetzter CO-Alarm (austauschbare Batterie)

  • EN 50291 Certified
  • Digital Display
  • Long radio signal range
  • Wireless interconnected
£99.99 £144.00
H01-R8 Interlinked_heat_alarm main pic 1
Sale
12% OFF
SKU: H01-R8(2pcs)

Drahtloser, miteinander verbundener Hitzemelder

  • Wireless interconnected
  • Low battery warning signal
  • Link up to 24 devices
  • BS 5839-6:2019 Grade F1
£41.99 £48.00
H01 heat alarm main pic 3
Sale
20% OFF
SKU: H01-R8(4pcs)

Drahtloser, miteinander verbundener Hitzemelder

  • Wireless interconnected
  • Low battery warning signal
  • Link up to 24 devices
  • BS 5839-6:2019 Grade F1
£75.99 £96.00
H01-R8 Interlinked Heat Alarm Package Box
Sale
SKU: H01-R8

Drahtloser, miteinander verbundener Hitzemelder

  • Wireless Interlinked Protection
  • Heat-Sensitive Precision
  • 10-Year Battery Life
  • Kitchen Optimized
£22.99 £24.00
S04-R8 Interlinked Smoke Alarm Package Box
SKU: S04-R8

10 Jahre kabelloser, vernetzter Rauchmelder (versiegelte Batterie)

  • 10-Year Battery Life
  • Wireless Interconnect
  • Link Up to 24 Devices
  • BS 5839-6:2019 Grade F1
£24.00
3pcs interlinked smoke alarms Interlinked Smoke Alarm New (3PC)
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16% OFF
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 £59.99
Interlinked Smoke Alarm New (4PC)
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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 £79.99
5pcs interlinked smoke alarms S05-R8 Interlinked smoke alarms
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20% OFF
SKU: S05-R8-B(5pcs)

Interlinked Smoke Alarm New (5PC)

  • 10-Year Lithium Battery
  • Wireless Interconnection
  • Certified Safety
  • 5-Year Warranty
£79.99 £99.99
S05-R8-B Interlinked smoke alarm new S05-R8-A Interlinked Heat Alarm Package Box
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SKU: S05-R8-A

Interlinked Smoke Alarm New S05-R8-A

  • Decade of Protection
  • No Wiring Needed
  • Interlinked Security
  • EN 14604 certified
£22.99 £24.00
S05-R8-B Interlinked smoke alarm new S05-R8-A Interlinked Heat Alarm Package Box
Sale
SKU: S05-R8-B

Interlinked Smoke Alarm New S05-R8-B

  • Interlinked Safety Network
  • Smart Gateway Integration
  • 10-Year Battery Life
  • EN 14604 Certified
£22.99 £24.00
DHI-HY-SA2FA 5PC WIFI Smoke alarm main pic Wisualarm smoke alarm certification
Sale
10% OFF
SKU: DHI-HY-SA2FA (5pcs)

Intelligenter WLAN-Rauchmelder

  • Real-Time Mobile Alerts
  • Easy App Management
  • 24/7 Safety Network
  • BS 5839-6:2019 Grade F2
£99.99 £119.99
Wisualarm heat alarm H01 Standalone Heat Alarm Package Box
Sale
25% OFF
SKU: H01

10 Jahre versiegelte Batterie Standalone-Hitzealarm

  • Class A1 Fire Detection
  • 10-year Battery Lifetime
  • Easy Test and Silence
  • BS 5839-6:2019 Grade F1
£17.99 £23.99
WL1 Water leak detector WL1_water_leak_detector_package_image
SKU: WL1

Standalone Water Leak Detector | 3-Year Battery Life

  • Drip & Leak Detection
  • IP65 Waterproof Rating
  • Audible & Visual Alert
  • Standalone Reliability
£13.99
DHI-HY-GW01A_gateway_main_pic DHI-HY-GW01A_gateway_package

Ausverkauft

SKU: DHI-HY-GW01A

WLAN- und Ethernet-Gateway

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

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.

Find Helpful Articles

...
Carbon Monoxide Safety: Protecting Your Home Against the "Silent Killer"

Carbon Monoxide Safety: Protecting Your Home Against the "Silent Killer"

Introduction: A Preventable Tragedy in British Homes Every year, the UK Fire and Rescue Services and the NHS deal with thousands of cases of Carbon Monoxide (CO) poisoning. Often referred...

Beyond the Alarm: Building a Complete Safety Network for Your Home

Beyond the Alarm: Building a Complete Safety Network for Your Home

For decades, the standard for home safety in the UK was simple: fit a battery-powered smoke alarm in the hallway and change the battery once a year. However, as our...

The 2026 Guide to the Best Interlinked Smoke & Heat Alarms in Scotland

The 2026 Guide to the Best Interlinked Smoke & Heat Alarms in Scotland

Since February 2022, Scottish law has mandated that every home—regardless of age or tenure—must have an interlinked alarm system. This means if a fire starts in the kitchen, the alarm...

UK & Scotland Fire Safety Guide: Why Interlinked Alarms and CO Detectors are Mandatory

UK & Scotland Fire Safety Guide: Why Interlinked Alarms and CO Detectors are Mandatory

In Scotland, fire safety isn't just a recommendation—it’s a legal requirement that sets some of the highest standards in the world. Since February 2022, the laws governing smoke and heat...

UK Carbon Monoxide Safety Guide for 2026 & an In-depth Look at Wisualarm

UK Carbon Monoxide Safety Guide for 2026 & an In-depth Look at Wisualarm

In the UK, as heating seasons cycle through, a lurking threat remains ever-present: carbon monoxide (CO). This colourless, odourless, and non-irritating gas, often dubbed the "silent killer," claims dozens of...

Why Does My Carbon Monoxide Alarm Keep Beeping?

Why Does My Carbon Monoxide Alarm Keep Beeping?

In the UK, we are a nation of "stay calm and carry on," but there is one sound that should never be ignored: the persistent chirping or blaring of a...

Safeguarding Your Home: A Comprehensive Guide to Interlinked Smoke Alarms

Safeguarding Your Home: A Comprehensive Guide to Interlinked Smoke Alarms

When it comes to fire safety, the "lone wolf" approach is a relic of the past. In the UK, fire safety regulations—particularly in Scotland and increasingly across England and Wales—are...

Why Every UK Home Needs a Floor Water Sensor?

Why Every UK Home Needs a Floor Water Sensor?

In the UK, we often talk about the weather outside, but it’s the water inside our homes that frequently causes the most heartbreak. According to the Association of British Insurers...

Guide to Fire Blankets: Protecting Your UK Home and Staying Compliant

Guide to Fire Blankets: Protecting Your UK Home and Staying Compliant

In the UK, the kitchen is statistically the most dangerous room in the house. According to the Home Office's Fire Statistics, cooking appliances are responsible for nearly 45% of all...

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