SKU: 44357574368

Kidde Sentry 1x KF21R Optical Smoke & 1x KF31R Heat Alarm Kit Mains Powered with Sealed-In Rechargeable Battery Back-Up c/w Quick Fit Base

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Description

Kidde Sentry 1x KF21R Optical Smoke & 1x KF31R Heat Alarm Kit Mains Powered with Sealed-In Rechargeable Battery Back-Up c/w Quick Fit BaseKidde Sentry KF21R & KF31R Mains Powered Smoke and Heat Alarm Kit with Rechargeable Lithium Battery Back Up The Kidde Sentry Alarm Kit combines the KF21R Optical Smoke Alarm and KF31R Heat Alarm to provide reliable, whole home fire detection for residential properties. Designed for mains powered installation, both alarms feature sealed rechargeable lithium battery back up protection and can be interconnected with up to 23 compatible Kidde FIREX

Kidde Sentry KF21R & KF31R Mains Powered Smoke and Heat Alarm Kit with Rechargeable Lithium Battery Back-Up

The Kidde Sentry Alarm Kit combines the KF21R Optical Smoke Alarm and KF31R Heat Alarm to provide reliable, whole-home fire detection for residential properties. Designed for mains-powered installation, both alarms feature sealed rechargeable lithium battery back-up protection and can be interconnected with up to 23 compatible Kidde FIREX alarms.

This advanced fire alarm kit delivers dependable smoke and heat detection across living spaces, escape routes, kitchens, garages and lofts, helping homeowners meet UK Building Regulations while improving property safety.

Each alarm is supplied with Kidde’s Quick-Fit Slide-On Base for faster installation and features integrated cable management to keep wiring secure and organised. The 150mm flared base plate also provides a neat finish when retrofitting existing alarms.

Kit Contents

  • 1 x Kidde KF21R Optical Smoke Alarm
  • 1 x Kidde KF31R Heat Alarm

KF21R Optical Smoke Alarm Features

The Kidde KF21R optical smoke alarm is designed to detect slow, smouldering fires caused by electrical faults, upholstery or cigarettes. Ideal for hallways, bedrooms and living spaces, the optical sensor provides reliable early warning protection.

  • Mains-powered optical smoke alarm with sealed rechargeable lithium battery back-up
  • Optical sensor with dust compensation and bug screen
  • Interconnects with up to 23 Kidde FIREX alarms
  • Alarm memory identifies the activated alarm
  • Combined Test/Hush button
  • Auto reset after activation
  • Tamper-resistant locking mechanism
  • Suitable for hallways, bedrooms, lofts and living rooms
  • BSI certified to BS EN14604:2005
  • 10-year warranty

KF31R Heat Alarm Features

The Kidde KF31R heat alarm is designed for kitchens, garages and loft spaces where smoke alarms may be unsuitable due to steam, cooking fumes or dust. Its thermistor heat sensor provides dependable heat detection while helping to reduce nuisance alarms.

  • Mains-powered heat alarm with sealed rechargeable lithium battery back-up
  • Thermistor heat sensor for reliable heat detection
  • Interconnects with up to 23 Kidde FIREX alarms
  • Alarm memory identifies the activated alarm
  • Combined Test/Hush button
  • Auto reset after activation
  • Tamper-resistant locking mechanism
  • Ideal for kitchens, garages and loft spaces
  • BSI certified to BS 5446 Part 2:2003
  • 10-year warranty including battery

Key Benefits

  • Complete smoke and heat alarm solution for residential properties
  • Sealed rechargeable lithium battery back-up for maintenance-free operation
  • Interlinked alarms provide whole-home warning when danger is detected
  • Quick-Fit bases for fast and simple installation
  • Integrated cable management for tidy wiring
  • Suitable for compliance with UK Building Regulations
  • Grade D1 domestic fire alarm system solution
  • Fully compatible with Kidde FIREX smoke, heat and CO alarms

Technical Specifications

KF21R Optical Smoke Alarm

  • Model: KF21R
  • Power Supply: 230V mains with sealed rechargeable lithium battery back-up
  • Sensor Type: Optical
  • Alarm Volume: 85dB minimum at 3 metres
  • Dimensions: 150mm x 150mm x 53mm
  • Weight: 260g
  • Operating Temperature: -10°C to +40°C
  • Warranty: 10 Years

KF31R Heat Alarm

  • Model: KF31R
  • Power Supply: 230V mains with sealed rechargeable lithium battery back-up
  • Sensor Type: Thermistor heat sensor
  • Alarm Volume: 85dB minimum at 3 metres
  • Dimensions: 150mm x 66mm
  • Weight: 245g
  • Operating Temperature: -10°C to +40°C
  • Warranty: 10 Years including battery

Please Note: Alarms are supplied individually within the kit. Installation should be completed by a qualified electrician.

Downloads

KF21R Data Sheet:
Download KF21R Data Sheet

KF31R Data Sheet:
Download KF31R Data Sheet

KF21R Instruction Manual:
Download KF21R Instruction Manual

KF31R Instruction Manual:
Download KF31R Instruction Manual

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SKU: 44357574368

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4.3 ★★★★★
Based on 8 reviews
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Verified Purchase
Tiana
Louisville, US
★★★★★ 4
Enchanting
Format: Kindle
"Queen of Roses" by Briar Boleyn is a delightful and refreshing reimagining of the classic tale of King Arthur, with a captivating twist that places the spotlight on Morgan, a character who has often been overshadowed in traditional retellings. Boleyn's creative decision to shift the narrative perspective to Morgan breathes new life into the story, offering readers an intriguing and compelling look at the Arthurian world from an entirely different angle. One of the most commendable aspects of this book is its incorporation of Fae elements, which adds an enchanting layer of magic and mystery to the already familiar Arthurian setting. Boleyn skillfully weaves the world of the Fae into the narrative, creating a captivating backdrop against which the events of the story unfold. This addition not only adds depth to the world-building but also provides ample opportunities for twists and turns that keep readers thoroughly engrossed. However, while the book boasts numerous strengths, it does have one noticeable flaw: the characterization of Morgan. While it is reasonable to create a flawed and complex protagonist, it appears that at times, Morgan's character becomes overly difficult and hard to relate to. Her persistently negative perception of one of the main male characters, who is a potential love interest, despite his efforts to support and assist her, may come across as somewhat irrational and could test the patience of some readers. Striking a balance between a strong, independent character and one who can recognize genuine support and affection could have enhanced the overall reader experience. Nonetheless, the allure of "Queen of Roses" lies in its innovative approach to the Arthurian legend and its skillful blending of fantasy elements into a familiar narrative. Boleyn's evocative prose draws readers into a world where magic, destiny, and fate entwine, leaving us eager to uncover the mysteries that unfold within the pages. I received a free copy of this book via Booksprout and am voluntarily leaving a review.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on July 28, 2023
S
Verified Purchase
Stephanie
Grantham, US
★★★★★ 5
An action-packed dark romantasy
Format: Kindle
I loved this book! Queen of Roses is an Arthurian-inspired dark romantasy that is the first book in the Blood of Fae series. The story follows Morgan, the princess of Camelot who is rumored to be part fae. Fueled by prejudiced hatred and a mistrust of fae blood, Morgan’s abusive father strips her of her birthright and hands it to her half-brother, Arthur. Instead of becoming queen, Morgan is commanded to join the temple of the goddesses when she comes of age. However, Arthur turns into a psychopathic, power-hungry, fae-hating king as he ages. He develops malevolent plans and commands Morgan to find an ancient weapon with legendary power. Although Morgan is wary of Arthur’s intentions, she embraces the opportunity to go on a journey and potentially change her fate. The story picks up from there and we follow Morgan on her quest to find the ancient relic. It’s full of high stakes adventure, mystery, tension, banter, forced proximity, hidden magic, self discovery, and betrayal. This first installment of the series intricately develops the world building and character development. There’s little romance in this book, but it is evident that it is a slow burn that will continue to develop throughout the remainder of the series. Overall, I loved the world building, the epic fantasy, Morgan’s journey of self discovery, and all of the twists and turns that set the stage for the future installments. I can’t wait to see what happens next!
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Reviewed in the United States on April 7, 2024
A
Verified Purchase
AlynReads
Bozeman, US
★★★★★ 4
Arthurian Fae Quest…say less.
Format: Kindle
A fae centered Arthurian tale unlike any I’ve read so far. The author did a great job at descriptive world building, with scenes easily playing out in my minds eye. There was plenty of action, suspense, and even a touch of horror. An enemies to lovers, slow burn romance, a quest, with plot twist and turns aplenty. There was a love triangle, which I’m not usually a fan of but, it played out well in this story line. The FMC, Morgan Pendragon, was so blatantly naïve, yet I typically expect as much in a ‘book one’ of a series, especially one that features a fairly sheltered princess. I was happy to read that in spite of this, she still showed a strong sense of morals, fire, and spine. Now our MMC? Kairos Draven, aka Void’s Edge. Oh, how I’m a sucker for a smoking’ hot grumpy warrior alpha with a witty mouth, and a strong sense of “touch her and die” attitude, so you know who held all my cards. That ending? Just made me swoon all the harder. Now add a battlecat that rivals the size of a horse…and well Ms. Briar Boleyn you have well and truly stolen my heart. I’m excited to see where the story goes from here, and follow along to see more of the characters growth. I went into this story fairly blind, and I think I enjoyed it all the more because of it. Once the story got going, it had me in an absolute chokehold and it was difficult to put down.
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Reviewed in the United States on May 12, 2024
A
Verified Purchase
Ariel
Whiting, US
★★★★★ 3
Not a bad start
Format: Kindle
3 stars Thank you Netgalley and Briar Boleyn for the ARC! A camelot/king Arthur retelling with fae. I was hooked by the idea of this book immediately and was eager to jump into this world. • slow burn • enemies to lovers • who did this to you Morgan Pendragon watched her mother die by her father's hand when she was just eight years old, hiding under the bed. Morgan is believed to have the tainted blood of the fae in her veins and is cast aside so that her fathers illegitimate son, Arthur, can become the king. She's seen his cruel treatment of the fae firsthand, so when he sends her on a journey to find a fae weapon she seizes the opportunity to do more with her life. Along the way, she finds more than she could have imagined. I don't know a whole lot about King Arthur and Camelot but I had a lot of fun with this story! The plot has some similar tropes to popular romantasy books (From blood and ash) but there's enough originality here that it doesn't feel like I'm reading a copy. I liked how the fae were different in appearance than what is typical in most fantasy books I've read. In this book they have blue hair, violet skin and a wide range of other characteristics. I thought that the world building was easy to follow and I could easily immerse myself into this world. After reading the blurb I kept wondering when she was going to go on the journey to find Excalibur and it doesn't happen until around the 45% mark. The story is a bit slow at times but starts to pick up once they begin their journey to find Excalibur. The John Wick style Inn was a fun concept that I enjoyed reading about. There are a lot of similarities to this and FBAA and I would have liked to have it be a little more different, but I'm hoping book two will have the story turn into something of its own. Overall I enjoyed reading this story and I'm looking forward to reading book two especially after that ending.
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Reviewed in the United States on May 27, 2023
V
Verified Purchase
Vikki Lynn
Omaha, US
★★★★★ 5
Unraveling Fate and Fae: A Captivating Journey in "Queen of Roses"
Format: Kindle
"Queen of Roses" by Briar Boleyn is a dark fantasy romance that masterfully combines elements of myth, magic, and romance with a captivating King Arthur retelling infused with a Fae twist. From its intricately woven plot to its compelling characters, this novel delivers an immersive reading experience that will leave readers eagerly anticipating the next installment. At its core, "Queen of Roses" is an enchanting tale of forbidden love and destiny, featuring an exceptionally slow-burn romance that ignites with the intensity of an enemies-to-lovers trope. Against a backdrop of magic and mythical creatures, the story unfolds with tension, banter, and forced proximity, drawing readers into a world filled with love, friendships, self-discovery, and betrayal. While the novel excels in world-building, character development, and plot intricacies, some readers may yearn for a bit more fire and spice in certain aspects of the narrative. However, the promise of future developments in the series offers hope for an even more dynamic and engaging story to come. I know I personally cannot wait to get into book 2. With a cliffhanger ending that leaves hearts racing and minds reeling, "Queen of Roses" succeeds in immersing readers from start to finish. Its dark and twisted fantasy elements are expertly balanced with moments of adventure, action, and unexpected twists, keeping readers on the edge of their seats until the very last page. As the story delves into complex themes and explores the depths of its characters' struggles and desires, it's important to note that "Queen of Roses" may contain triggering content. Readers are advised to check the trigger warnings before diving into this captivating tale. Overall, "Queen of Roses" is a must-read for fans of dark fantasy romance, offering a mesmerizing journey that will leave readers eagerly anticipating the next chapter in the series. With its lush prose, intricate storytelling, and unforgettable characters, this novel is sure to leave a lasting impression on all who venture into its enchanted world. I want to extend a heartfelt shoutout to the author for granting me the opportunity to dive into "Queen of Roses" through NetGalley. It has been an absolute pleasure to explore the captivating world and characters crafted with such skill and imagination. Thank you for entrusting me with this glimpse into your enchanting world.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 1, 2024

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