Domestic Smoke, Heat & CO Alarms

WisuAlarm DHI-HY-SA40A-R8 | Wireless Interlinked Smoke Alarm | 10-Year Battery, Split-Spectrum Sensor

Wisualarm by Dahua

10-year sealed lithium battery — no wiring or battery replacements needed
Split-spectrum sensor for faster fire detection with fewer false alarms
Wirelessly interlinks with up to 24 devices for whole-property coverage

Environment Indoor

Colour White

£20.92 (inc VAT: £25.10)

In Stock

SKU: DHI-HY-SA40A-R8

Large Property Fire Alarm Kit — Battery (Grade F1)

Wisualarm by Dahua

A complete, fully wireless battery-powered fire alarm kit for three-storey homes and larger properties.

Device Type Kit

System Type Grade F1

£110.19 (inc VAT: £132.23)

In Stock

SKU: large-property-fire-alarm-kit-f1

Large Property Fire Alarm Kit — Mains (Grade D1)

Wisualarm by Dahua

A complete mains-powered fire alarm kit for three-storey homes and larger properties.

Device Type Kit

System Type Grade D1

£123.75 (inc VAT: £148.50)

In Stock

SKU: large-property-fire-alarm-kit-d1

Large Property Fire Alarm Kit — Mains with Wireless Interlink (Grade D1)

Wisualarm by Dahua

A complete mains-powered fire alarm kit for three-storey homes and larger properties, with wireless interlink included.

Device Type Kit

System Type Grade D1

£192.79 (inc VAT: £231.35)

In Stock

SKU: large-property-fire-alarm-kit-d1-wireless

Medium Property Fire Alarm Kit — Battery (Grade F1)

Wisualarm by Dahua

A complete, fully wireless battery-powered fire alarm kit for two-storey homes (typically 2–3 bedrooms).

Device Type Kit

System Type Grade F1

£89.04 (inc VAT: £106.85)

In Stock

SKU: medium-property-fire-alarm-kit-f1

Medium Property Fire Alarm Kit — Mains (Grade D1)

Wisualarm by Dahua

Complete mains-powered Grade D1 fire alarm kit for medium-sized domestic properties, including two-storey homes. Includes interlinked smoke and heat alarms with sealed ten year battery backup, plus carbon monoxide protection as standard.

Device Type Kit

System Type Grade D1

£97.40 (inc VAT: £116.88)

In Stock

SKU: medium-property-fire-alarm-kit-d1

Medium Property Fire Alarm Kit — Mains with Wireless Interlink (Grade D1)

Wisualarm by Dahua

A complete mains-powered fire alarm kit for two-storey homes (typically 2–3 bedrooms), with wireless interlink included.

Device Type Kit

System Type Grade D1

£150.99 (inc VAT: £181.19)

In Stock

SKU: medium-property-fire-alarm-kit-d1-wireless

Small Property Fire Alarm Kit — Battery (Grade F1)

Wisualarm by Dahua

A complete, fully wireless battery-powered fire alarm kit for single-floor homes, flats and bungalows.

Device Type Kit

System Type Grade F1

£67.89 (inc VAT: £81.47)

In Stock

SKU: small-property-fire-alarm-kit-f1

Small Property Fire Alarm Kit — Mains (Grade D1)

Wisualarm by Dahua

A complete mains-powered fire alarm kit for single-floor homes, flats and bungalows.

Device Type Kit

System Type Grade D1

£71.05 (inc VAT: £85.26)

In Stock

SKU: small-property-fire-alarm-kit-d1

Compatible with Wisualarm mains powered alarms
Wireless interconnected with maximum of 24 WisuLink RF devices
RF mesh interconnected architecture

Grade D

Environment Indoor

Colour White

£15.45 (inc VAT: £18.54)

In Stock

SKU: DHI-HY-MRF50-R8

Wisualarm Standalone Smoke Alarm

Wisualarm by Dahua

Split-spectrum photoelectric sensor for fast and accurate smoke detection
10-year sealed lithium battery requiring no maintenance
85dB alarm output with test and silence functions in single button

Device Type Detector

Environment Indoor

Colour White

£13.61 (inc VAT: £16.33)

Low Stock

SKU: DHI-HY-SA40A

Wisualarm Alarm Kit for the Deaf & Hard of Hearing

Wisualarm by Dahua

Light and vibration alarms designed for hearing impaired users
Wireless interconnection supports up to 24 Wisualarm devices
Dual power supply with rechargeable battery backup

Device Type DDA

£55.30 (inc VAT: £66.36)

In Stock

SKU: DHI-HY-KIT1-SLVP

Wisualarm Wireless Water Leak Detector

Wisualarm by Dahua

Real-time smartphone alerts
IP65 waterproof rating
Wall mount or free standing installation

Device Type Detector

Environment Indoor

Colour White

This item is not available to purchase online.

In Stock

SKU: DHI-HY-WL13A-R8

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Wisualarm Hard Wired Interconnected Relay Module

Wisualarm by Dahua

Interconnects up to 24 mains powered alarm devices
9V rechargeable lithium battery backup
Volt-free alarm signal input and output contacts

Device Type Relay

Grade D

£28.93 (inc VAT: £34.72)

In Stock

SKU: DHI-HY-MO3MH

Wisualarm Wireless Interconnected Alarm Control Unit

Wisualarm by Dahua

Controls up to 24 wireless interconnected alarms
10-year non-replaceable lithium battery
1000m radio signal range in open air

Device Type Control Unit

£34.03 (inc VAT: £40.84)

In Stock

SKU: DHI-HY-RC20A-R8

Wisualarm Wireless Interconnected Relay Module

Wisualarm by Dahua

Up to 24 device wireless interconnection
9V lithium battery backup
Volt-free relay outputs

Device Type Relay

Grade D

£31.48 (inc VAT: £37.78)

In Stock

SKU: DHI-HY-MO5MA-R8

Wisualarm 10-Year Battery Heat Alarm with Wireless Interconnect

Wisualarm by Dahua

Class A1 fire detection (54°C to 65°C)
Wireless interconnected with up to 24 devices
10-year battery life

Device Type Detector

Environment Indoor

Colour White

£21.15 (inc VAT: £25.38)

In Stock

SKU: DHI-HY-HT10A-R8

Wisualarm 10-Year Battery CO Alarm with Wireless Interconnect

Wisualarm by Dahua

High-performance electrochemical CO sensor
10-year battery life
Wireless interconnected with up to 24 devices

Recommended Add-Ons

Device Type Detector

Environment Indoor

Colour White

£25.59 (inc VAT: £30.71)

In Stock

SKU: DHI-HY-GC20D-R8

Wisualarm 10-Year Battery CO, Temperature & Humidity Alarm with Wireless Interconnect

Wisualarm by Dahua

High-performance electrochemical CO sensor
Long battery life of up to 10 years
Wireless interconnection with up to 24 devices

Recommended Add-Ons

Device Type Detector

Environment Indoor

Colour White

This item is not available to purchase online.

SKU: DHI-HY-GC30A-R8

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Domestic Smoke, Heat & CO Alarms

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WisuAlarm DHI-HY-SA40A-R8 | Wireless Interlinked Smoke Alarm | 10-Year Battery, Split-Spectrum Sensor

Large Property Fire Alarm Kit — Battery (Grade F1)

Large Property Fire Alarm Kit — Mains (Grade D1)

Large Property Fire Alarm Kit — Mains with Wireless Interlink (Grade D1)

Medium Property Fire Alarm Kit — Battery (Grade F1)

Medium Property Fire Alarm Kit — Mains (Grade D1)

Medium Property Fire Alarm Kit — Mains with Wireless Interlink (Grade D1)

Small Property Fire Alarm Kit — Battery (Grade F1)

Small Property Fire Alarm Kit — Mains (Grade D1)

Small Property Fire Alarm Kit — Mains with Wireless Interlink (Grade D1)

Wisualarm Mains Smoke Alarm with 9V Battery

Hand-picked accessories for this item

Wisualarm Mains Heat Alarm with 9V Battery

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Wisualarm Mains Smoke Alarm with 10-Year Lithium Battery

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Wisualarm Mains Heat Alarm with 10-Year Lithium Battery

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Wisualarm Wireless Interconnected Module

Wisualarm Standalone Smoke Alarm

Wisualarm Alarm Kit for the Deaf & Hard of Hearing

Wisualarm Wireless Water Leak Detector

Wisualarm Hard Wired Interconnected Relay Module

Wisualarm Wireless Interconnected Alarm Control Unit

Wisualarm Wireless Interconnected Relay Module

Wisualarm 10-Year Battery Heat Alarm with Wireless Interconnect

Wisualarm 10-Year Battery CO Alarm with Wireless Interconnect

Hand-picked accessories for this item

Wisualarm 10-Year Battery CO, Temperature & Humidity Alarm with Wireless Interconnect

Hand-picked accessories for this item