Kidde Firex 5x KF20LL Optical Smoke & 1x KF30LL Heat Alarm Kit Mains Powered with Long-Life 9V Lithium Battery Back-Up
SKU: 83274653522

Kidde Firex 5x 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 5x KF20LL Optical Smoke & 1x KF30LL Heat Alarm Kit Mains Powered with Long-Life 9V Lithium Battery Back-UpKidde Firex 5x 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 5x 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 5x 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

5x 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
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Exchange/Return Notes
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SKU: 83274653522

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K
keke
Pawtucket, US
★★★★★ 5
Short, cute, straight to the point
Format: Kindle
This is the type of fast pace stories I love to read. I felt nothing felt incomplete. Everything went together. Loved the men loved the best friend and the Fmc. Definitely would recommend this book.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 26, 2026
R
R. Jones
Boise, US
★★★★★ 4
Fun, Steamy, and Just Enough Depth
Format: Kindle
I liked this book — it was cute, short, and exactly what I expected from a quick Omegaverse read. While it doesn’t dive too deeply into character development, there was enough personality and backstory sprinkled in to keep the relationships believable and engaging, especially given the length. What I really appreciated was that the focus stayed on the main characters and their connection. The heat, the banter, and the romance were front and center without getting bogged down in unnecessary drama. It made for an easy, enjoyable read that flowed smoothly from start to finish. I’m looking forward to the next book in the series. There was a teaser blurb at the end, but it isn’t up on Amazon yet — hopefully it’ll be posted soon so I can add it to my wish list.
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Reviewed in the United States on September 14, 2025
N
Verified Purchase
N McKinney
New York, US
★★★★★ 3
Good But
Format: Kindle
A little disjointed at times, at least to me. This was about Lila (omega woman) and Harrison, Wesley and River (alpha males). The main characters were likeable, as was Lila's friend, Wendy. Lila finally wised up and left the alpha she had been with for a couple of years because he was an a-hole, who treated and used her horribly. She knew some, if not all, of the guys from college if I remember correctly. The guys had been looking for an omega to bond with for some time. When Lila saw Harrison again, the other two guys were out on a date with another omega but Harrison refused to go because he didn't like her. He saw Lila again and knew she was the omega they had been searching for. However, it wasn't easy for them to convince Lila of that because of the way her ex-alpha treated her. The sex was hot. There was one inconsistency. I could almost swear that when Lila first saw Harrison again, she told her best friend, Wendy, that Harrison was the lead for his pack. Then later on when she's spending time with River, she thinks he is the pack's lead. Maybe I read something incorrectly. All in all, a good story.
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Reviewed in the United States on March 13, 2026
B
bcgr
Birmingham, US
★★★★★ 5
Sweet read
Format: Kindle
A sweet steamy read of an omega who finds her worth and finds the guys that are willing to show her. The story had lovable characters with low angst and a HEA.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on November 7, 2025
B
brenda byes-justin
Pawtucket, US
★★★★★ 5
knotty book 1
Format: Kindle
Super enjoyable! What a horrible ex. Was glad to see the back of him, I was hoping I would get to see him suffer a whole lot more.
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Reviewed in the United States on October 5, 2025

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