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Description
Kidde Firex 1x KF20 Optical Smoke & 1x KF30 Heat Alarm Kit Mains Powered with 9V Alkaline Battery Back-UpKidde Firex 1x 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 1x 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 1x 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
1x 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 KF20Data Sheet for KF30
Instruction Manual:
Instruction Manual for KF20Instruction 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:
- 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
4.8 ★★★★★
Based on 25 reviews
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Product Reviews
★★★★★ 5
A Simple, Effective, and Inexpensive Device
Color: Silver, Style: 1-Pack
I have tried many variations of the standard computer mouse over the years. You probably have too. From weird angles, extra buttons in the scroll, funny side buttons that only make you go backwards on your web browser...Sometimes, you just want a point, click, scroll...and that's it.
Pros:
- This mouse delivers on simplicity. It doesn't have fancy advanced features. This basically functions as a point and click. It has a left and right hand button to do those old fashioned right and left button tasks. It has a basic scroll button. It's low tech features, but quality built for those features that it has.
- It seems to work on most surfaces without a mouse pad.
- Cost is ridiculously low. It's almost so low that you question its quality. In this case - it's Amazon. Amazon has really delivered on their Amazon Basics division. This falls neatly into that category of awesome but inexpensive Amazon Basics stuff.
- Connected within a second to my computer (Mac). I don't see any connectivity issues. I didn't have to download drivers at all.
Cons
- I haven't used it long term yet so if there is a break down, or the battery life turns out to be poor, I will update. For now, it's behaving beautifully.
Overall, if you miss a nice, simple, uncomplicated mouse - start here. Worst case scenario, you can return it. After all, Amazon has been standing behind their stuff for a while now so I'm not afraid to start with theirs and see how well they did. This is another one that didn't disappoint and it cost 50% less than its nearest competitor (at the time I bought it at least).
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 18, 2019
★★★★★ 5
This works well for me for work and gaming
Color: Blue, Style: 1-Pack
A very good travel mouse. It's not too big and the battery lasts a long time. It is comfortable and works well
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 18, 2026
★★★★★ 4
Mostly a Really Good Mouse
Color: Silver, Style: 1-Pack
This mouse connected perfectly, feels good, and even works seamlessly with my cordless keyboard, which of course uses a different dongle. I have only one small issue, but it's one I thought worth mentioning. While the buttons work normally when moving the cursor around the screen, when it comes to actually making a selection with the primary button (right- or left-handed, doesn't matter), one must press the button VERY deliberately and somewhat slower for the "click" to be recognized. A typical "quick click" at the speed one would normally use, say, when typing or normal "mousing" often will not register with the computer. The result is that I have to slow down and click again. In several decades of using a computer mouse I've never experienced this phenomenon. I've grown used to it, however, and adjusted to the necessity to give the selection button a slower and harder "press" when making selections, and that's all it takes. And oddly, it only requires this extra deliberate action when pressing a selection button. Not the biggest issue one could have, but I thought it worth mentioning. Other than that, no problems, and really, the price is very good, so as they say, you pays your money and you makes your choice. ;-)
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Reviewed in the United States on March 23, 2025
★★★★★ 5
Great Value
Color: Silver, Style: 1-Pack
Works perfectly!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 23, 2026
★★★★★ 5
A good mouse
Color: Blue, Style: 1-Pack
This is a very comfortable note to use for long period of time. My hand does not get tired with it.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 10, 2026