SKU: 26607700899

Kidde Firex 3x KF20LL Optical Smoke & 1x KF30LL Heat Alarm Kit Mains Powered with Long-Life 9V Lithium Battery Back-Up

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Description

Kidde Firex 3x KF20LL Optical Smoke & 1x KF30LL Heat Alarm Kit Mains Powered with Long-Life 9V Lithium Battery Back-UpKidde Firex 3x KF20LL Optical Smoke & 1x KF30LL Heat Alarm Kit Mains Powered with Long Life 9V Lithium Battery Back Up FULLY COMPLY WITH THE NEW 2022 SCOTTISH & WELSH REGULATIONS 3x Mains Powered Optical Smoke Alarm (KF20LL): 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

Kidde Firex 3x KF20LL Optical Smoke & 1x KF30LL Heat Alarm Kit Mains Powered with Long-Life 9V Lithium Battery Back-Up

FULLY COMPLY WITH THE NEW 2022 SCOTTISH & WELSH REGULATIONS

3x Mains Powered Optical Smoke Alarm (KF20LL):

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 Lithium back-up battery supplied as standard

Mains Optical Smoke Alarm Specification:

  • Model KF20LL
  • Power Supply 230V mains-powered with 9V Lithium 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 (KF30LL):

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 Lithium back-up battery supplied as standard

Mains Heat Alarm Specification:

  • Model KF30LL
  • Power Supply 230V mains-powered with 9V Lithium 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 KF20LL
Data Sheet for KF30LL

Instruction Manual:

Instruction Manual for KF20LL
Instruction Manual for KF30LL
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: 26607700899

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4.1 ★★★★★
Based on 28 reviews
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Q
Queen_bee
Lowell, US
★★★★★ 4
Great product quality
Color: Black
This had literally everything I was looking for, but… just too large for the area I wanted it in. Check the measurements and compare that to your actual space. If they had about 1/2 to 1/3 of this size I would snatch it up in a heartbeat. It has a groove for your phone charging cable and the moving magnetic dividers are genius. I’m looking for something to put on my nightstand to allow the phone to charge at night but face down. Extra section for earrings or hair accessories, etc would be great. This has that potential. Just needed it smaller.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 3, 2026
S
Sue S.
Massapequa, US
★★★★★ 5
Versatile organizer for men or women
Color: Black, Color: Black
This is a just drawer organizer tray or nightstand organizer that is very handsome with wood grain and metal the two bars are magnetic and you can move them around to suit the size of the items that you're placing in the organizer. I think it's a very versatile item that can use by either men or women and it's a decent size and it can fit small pieces of jewelry your phone a few other items if you were organizing your nightstand before bed certainly can go into a desk drawer or a nightstand drawer to suit your lifestyle. I think it was a good value for the money because it is yet another item that can help us be more organized in this busy world.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 3, 2026
O
Outcast
Boise, US
★★★★★ 5
Simple, hefty configurable small tray
Color: Black, Color: Black
"Hefty" is not an expected description for a drawer organizer. But it is in this case because of the solid metal plate it's made from. You could brain a zombie with this tray and not dent it (the tray... the zombie's the one that would be dented). Guess the material choice does make sense since the two wooden dividers uses magnets to hold positions. A strong bump would be needed to shift the placed dividers. You get some basic configuration choices from the dividers. Including additional (different length) dividers would allow further sectioning options would have been nice. It also looks good too. Like the design and utility. Would also go for a bigger version. Perhaps that one, like this, would have secondary uses... perhaps as armor plating?
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 19, 2026
O
Olivia Pasquarelli
Bozeman, US
★★★★★ 5
Elegant and easy to customize to organize your desk
Color: Black, Color: Black
This desk organizer was higher quality and more elegant looking than I thought it would be, so I decided to use it to hold some things on my dresser. It’s too pretty to hide away in my drawer. The compartments snap into place with magents so you can adjust based on how you want to organize your items. The tray itself is heavy, durable, and well-made. The compartments and edges seem to be authentic wood, and the base surface of the tray is a rubber-like surface that keeps things from slipping while still looking very nice. I like this tray enough to put it on display as a part of my home decor. It’s not only useful for organizing some odds and ends, but is also very beautiful and well made.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 12, 2026
A
Amazon customer
Belleville, US
★★★★★ 4
Stylish Aesthetic with Functional Limitations
Color: Black
This desk organizer offers a sophisticated look that complements modern furniture and decor quite well. The combination of aluminum and walnut creates a professional appearance that effectively tidies up a workspace or nightstand. I particularly appreciate the soft-touch base, which provides a safe surface for delicate items like phone screens or watches, ensuring they remain free of scratches. Additionally, the materials are very easy to wipe down and maintain. However, the build quality does not entirely justify the premium price point. The aluminum components feel more like thin, shaped sheet metal rather than a solid, high-end material. While the walnut accents are a nice touch, they lack the weight and substance I expected for a valet tray in this category. The primary functional drawback lies in the magnetic adjustment system. The magnets are relatively weak, meaning that accidentally bumping a divider while reaching for an item can easily shift the layout. This requires frequent readjustments, which can be frustrating during a busy workday. Furthermore, the magnetic rails can interfere with other metallic or magnetic objects you might try to store. If you are looking for a purely aesthetic upgrade to organize lightweight items, this tray serves that purpose, but it falls short in terms of stability and material density.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 7, 2026

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