SKU: 87873601640

Kidde Firex 5x KF20 Optical Smoke & 1x KF30 Heat Alarm Kit Mains Powered with 9V Alkaline Battery Back-Up

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Description

Kidde Firex 5x KF20 Optical Smoke & 1x KF30 Heat Alarm Kit Mains Powered with 9V Alkaline Battery Back-UpKidde Firex 5x KF20 Optical Smoke & 1x KF30 Heat Alarm Kit Mains Powered with 9V Alkaline Battery Back Up FULLY COMPLY WITH THE NEW 2022 SCOTTISH & WELSH REGULATIONS 5x Mains Powered Optical Smoke Alarm (KF20): Mains Optical Smoke Alarm Features: Mains powered optical smoke alarm that can be interlinked with up to 23 other Kidde mains alarms, be they ionisation, optical or heat. Once interlinked, the detection of the relevant danger by an individual

Kidde Firex 5x KF20 Optical Smoke & 1x KF30 Heat Alarm Kit Mains Powered with 9V Alkaline Battery Back-Up

FULLY COMPLY WITH THE NEW 2022 SCOTTISH & WELSH REGULATIONS

5x Mains Powered Optical Smoke Alarm (KF20):

Mains Optical Smoke Alarm Features:

Mains-powered optical smoke alarm that can be interlinked with up to 23 other Kidde mains alarms, be they ionisation, optical or heat.
Once interlinked, the detection of the relevant danger by an individual unit will sound across all the connected alarms.
Optical alarms are for use in escape or circulation routes and in areas where there is a danger of ignition of furniture and surroundings by cigarettes producing slow, smouldering fires.
This mains-powered unit should be installed by a qualified electrician and can be used throughout the home, except in the kitchen where a Firex Heat Alarm is recommended. These alarms comply with UK Building Regulations for new housing and associated standards (Grade D BS 5839, Part 6).

  • Interlink with up to 23 Firex hard-wired alarms – all alarms sound if danger is detected
  • Alarm memory – identifies source unit within interconnecting network
  • Combined Test/Hush button allows regular testing of alarm function and can be used to temporarily silence nuisance alarms
  • Auto reset after activation
  • Tamper-resistant locking device – prevents unauthorised removal without the use of a tool
  • Mains operation – 9V Alkaline back-up battery supplied as standard

Mains Optical Smoke Alarm Specification:

  • Model KF20
  • Power Supply 230V mains-powered with 9V Alkailine battery back-up
  • Temperature Range 0ºC to + 40ºC
  • Humidity Range Up to 93% Relative Humidity (RH) non-condensing
  • Storage and Transport -20ºC to +60ºC and 5–95% relative humidity (RH) non-condensing
  • Alarm Dimensions 127 x 127 x 39mm
  • Bracket Dimensions 133 x 133 x 6mm
  • Alarm Weight 242g
  • Warranty 6 years
  • Approvals BSI certified to BS EN14604:2005
  • CE tested and certified Sensor Optical, circular lateral chamber with insect-resistant width slot entry portals and added bug screen mesh
  • Chamber Size 35mm outside diameter x 16mm depth approximate (external)
  • Detection Band Infrared light wavelength
  • Button Test Simulates the effect of smoke within the sensing chamber, checks electronics and sounder
  • Automatic Self-test Circuitry is tested and unit beeps (chirps) if fault is detected
  • Supply Voltage 230V AC, 50 Hz (nominal UK voltage)
  • Power Consumption < 15mA
  • Connection Push-in/snap-fit type connector with 150mm long flying leads (supplied)
  • Battery Back-up User-replaceable alkaline 9V battery (522/6LR61)
  • Power-on Indicator Continuous green LED
  • Alarm Sounder Electronic piezo-electric sounder (T3 pattern sound - 3 pulses - space - 3 pulses), soldered contacts
  • Sound Output 85dB (A) minimum at 3 metres
  • Alarm Frequency 3.2 kHz typical
  • Dust Protection In-built foam gasket in rear of alarm to prevent dust ingress into rear of the alarm
  • Alarm Status Red LED flashes approx once every five minutes = normal operation
  • Red LED flashes once a second = sensing smoke (sounder alarm sounds)
  • Red LED flashes once every ten seconds = in hush condition (auto-reset after 15 minutes)
  • Interconnection Up to 24 Firex and Kidde ‘Slick’ units (smoke, heat and CO) can be hardwire interconnected with optional control (see below)
  • Optional Controls Wired Remote Test and Hush Unit (REMTH) allows test and hush of interlinked units
  • Optional Pattresses SMK23RU also has integral switchable relay for operating remote devices
  • SMK4896 – Surface mounting base for added ease of installation
  • Fixing Mounting bracket ring supplied with two ‘T’ slot fitting option
  • 57mm spacing to a maximum of 90mm for standard screw fittings on back boxes
  • Bracket has 50mm diameter central access hole for cabling
  • Plastics used NORYL – Cover, main body and mounting bracket
  • Lead-Free Status All Firex alarms are lead-free

1x Mains Powered Heat Alarm (KF30):

Mains Heat Alarm Features:

Mains-powered heat alarm that can be interlinked with up to 23 other Kidde mains alarms, be they ionisation, optical or heat.
Once interlinked, the detection of the relevant danger by an individual unit will sound across all the connected alarms.
Mains-powered heat alarms can be used throughout the home in humid or dusty environments where an optical or ionisation smoke alarm is unsuitable, e.g. kitchens, loft spaces and garages.
The Firex range requires installation by a professionally qualified electrician and complies with UK Building Regulations for new housing and associated standards (Grade D BS 5839, Part 6).

  • Interlink with up to 23 Firex hard-wired alarms – all alarms sound if danger is detected
  • Alarm memory – identifies source unit within interconnecting network
  • Combined Test/Hush button allows regular testing of alarm function and can be used to temporarily silence nuisance alarms
  • Auto reset after activation
  • Tamper-resistant locking device – prevents unauthorised removal without the use of a tool
  • Mains operation – 9V Alkaline back-up battery supplied as standard

Mains Heat Alarm Specification:

  • Model KF30
  • Power Supply 230V mains-powered with 9V Alkaline battery back-up
  • Temperature Range 0ºC to + 40ºC
  • Humidity Range Up to 93% Relative Humidity (RH) non-condensing
  • Storage and Transport -20ºC to +60ºC and 5–95% relative humidity (RH) non-condensing
  • Bracket Dimensions 127 x 127 x 39mm
  • Alarm Dimensions 133 x 133 x 6mm
  • Alarm Weight 213g
  • Warranty 6 years
  • Approvals BSI certified to BS5446 Part 2: 2003
  • CE tested and certified
  • Sensor Thermistor (Thermal Resistor) within detection unit
  • Button Test Simulates the effect of heat at the sensor, checks electronics and sounder
  • Automatic Self-test Circuitry is tested and unit beeps (chirps) if fault is detected
  • Supply Voltage 230V AC, 50 Hz (nominal UK voltage)
  • Power Consumption < 15mA
  • Connection Push-in/snap-fit type connector with 150mm long flying leads (supplied)
  • Battery Back-up User replaceable alkaline 9V battery (522/6LR61)
  • Power-on Indicator Continuous green LED
  • Alarm Sounder Electronic piezo-electric sounder (T3 pattern sound - three pulses - space - three pulses) with soldered contacts
  • Sound Output 85dB (A) minimum at 3 metres
  • Alarm Frequency 3.2 kHz typical
  • Alarm Status Red LED flashes approx once every five minutes = normal operation
  • Red LED flashes once a second = sensing heat in excess of 58ºC (sounder alarm sounds)
  • Interconnection Up to 24 Firex and Kidde ‘Slick’ units (smoke, heat and CO) can be hardwire interconnected with optional control (see below)
  • Optional Controls Wired Remote Test and Hush Unit (REMTH) allows test and hush of interlinked units
  • Optional Pattresses SMK23RU also has integral switchable relay for operating remote devices
  • SMK4896 – Surface mounting base for added ease of installation
  • Fixing Mounting bracket ring supplied with two ‘T’ slot fitting option
  • 57mm spacing to a maximum of 90mm for standard screw fittings on back boxes
  • Bracket has 50mm diameter central access hole for cabling
  • Plastics used NORYL – Cover, main body and mounting bracket
  • Lead-Free Status All Firex alarms are lead-free

Please note: Alarms are sold individually.

Data Sheet:

Data Sheet for KF20
Data Sheet for KF30

Instruction Manual:

Instruction Manual for KF20
Instruction Manual for KF30
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 87873601640

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Dave A.
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★★★★★ 3
Harder and heavier than a dog toy should be, but it is sturdy.
Color: Mixed Blue
The outer rim is a very hard plastic, hard enough to dent and ding furniture. Too hard to throw in the house. Dog likes it but has difficulty getting his mouth around the sides as the item is very heavy for its size. Squeaker in the middle was a a nice surprise. Would not buy again.
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Reviewed in the United States on June 7, 2026
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Vicky Courtright
Natrona Heights, US
★★★★★ 4
Durable and well made.
Color: Mixed Blue
Our dog will chew any toy up in 2.5 seconds. This has lasted for quite some time. It's super hard which can be a downfall because they lose interest. Squeeker is hard to push down but overall it's outlasted other toys.
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Reviewed in the United States on April 27, 2026
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shelly
Lexington, US
★★★★★ 5
Dog toy
Color: Mixed Blue
Glad I bought this. My dog job is to destroy her toys or she thinks so. This is great for her chewing and catching while it will be sometime before she destroys this one
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Reviewed in the United States on May 24, 2026
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Oppenheimer
Fort Morgan, US
★★★★★ 5
My Catahoula Leopard Dog LOVES this toy!
Color: Mixed Blue
Dog loves it- can't get a break from my dog constantly wishing to play with him and this dang toy- prefers it over all others-including a ball.
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Reviewed in the United States on June 3, 2026
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MARIA
Whiting, US
★★★★★ 5
Perfect Teething Toy for Puppies!
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My puppy absolutely loves this Nylabone Puppy Pacifier Chew Toy! The bacon flavor immediately caught his attention, and it has quickly become his favorite toy. It’s the perfect size for small puppies and easy for little mouths to carry around and chew on. The material is soft enough for teething but still durable enough to hold up to daily chewing. It has really helped redirect my puppy from chewing on furniture and shoes, and it seems to soothe his gums while he’s teething. I also like that it keeps him entertained for long periods of time. Great quality, puppy-approved, and definitely worth buying for any small dog owner!
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Reviewed in the United States on May 29, 2026

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