SKU: 39625373325

Kidde Firex 2x KF20 Optical Smoke & 1x KF30 Heat Alarm Kit Mains Powered with 9V Alkaline Battery Back-Up

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Description

Kidde Firex 2x KF20 Optical Smoke & 1x KF30 Heat Alarm Kit Mains Powered with 9V Alkaline Battery Back-UpKidde Firex 2x 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 2x 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 2x 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

2x 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: 39625373325

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4.2 ★★★★★
Based on 25 reviews
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Product Reviews
S
Verified Purchase
Signof12
Lowell, US
★★★★★ 5
Great toy that stands up to tough dogs
Size: 5 Pack
When these toys first arrived and I opened the box I was disappointed. They seemed a bit flimsy and were not what I was expecting Boy was I wrong! My dog lived his new toy and it’s has not left his side. Best of all, it’s a tough little toy that can take a beating and keep going. My dog usually tears through his toys in a matter of hours, and I tried numerous toys over the years. I’ve tried Kevlar toys, toy that claim to be very sturdy, he always destroyed them in a matter of hours. This toy looks flimsy, but it’s soft and strong
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 20, 2026
T
Verified Purchase
TNEarthMAMA
Massapequa, US
★★★★★ 5
Dog toy that lasts.
Size: 5 Pack
I've got a heavy chewer on my hands, so I've basically thrown money away on countless "durable" toys that get shredded in minutes. I was skeptical about these, but the "no stuffing" design caught my eye—at least there wouldn't be fluff all over my living room! I'm happy to report that these have actually lasted! My dog loves shaking them around and making them squeak. The crinkle sound is a huge bonus; it really keeps him engaged. The fact that they're lightweight makes them perfect for a game of fetch, and my dog can easily carry them around. For the price, getting a whole bundle of these is a great deal. If you're tired of cleaning up toy stuffing, I'd definitely recommend giving these a try.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 18, 2026
C
Verified Purchase
Cosmicethos
Los Angeles, US
★★★★★ 4
Not for aggressive dogs but no stuffing is super!
Size: 5 Pack
I've bought these several times but have the attitude that toys are disposable. One of my hounds will drop right through then to pull out the squeaker before losing interest. My other hound wants to love them. Glad there is no stuffing to get all over the house but they will tear quickly.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 8, 2026
K
Verified Purchase
Keaonna Tarr
San Leandro, US
★★★★★ 5
worth the price !
Size: 5 Pack, Size: 5 Pack
Best toys for our livestock puppies since they have been getting into our outdoor things which isn’t their faults but i figure I would get these small squeaky animals toys and they are obsessed and love playing tug a war with them! They’re super soft, the quality is amazing cause these puppies are tough chew monsters, love the squeaky sound it makes and the patting are suitable as well! Definitely recommend this especially for the price and how fast shipping was !
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 16, 2026
A
Verified Purchase
Aaryn Ricucci-Hill
Whiting, US
★★★★★ 5
Solid dog toys HOWEVER...
Size: 5 Pack
Got these toys for our collie-retriever. He loves them and plays with them a lot and will even get them out in the middle of the night to play with them. Since there's no stuffing you can't throw them very far but they are good for tug-of-war and really soft. The one downside, while they techically are durable and hold up to rigorous chewing, they are not impervious as our little man finally disembowled Mr. Lion after a few months of playing with him. (Serated the lining with his teeth.) Still highly recommend.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 17, 2026

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