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This clearance item is end of line with limited stock remaining at this great price - once they're gone, they're gone.

Kidde's Slick wireless heat alarm 3SFW (previously 3SF23/9hi) has the unique fast fit base and screwless terminals (each alarm still needs connection to a local lighting circuit but interconnecting is wireless) and a simple fitting for the smoke alarm to slot-in fit. Installation or removal for maintenance takes a fraction of the time compared to a hard-wired alarm making the ideal for large housing projects, listed buildings or for those places where wiring is difficult. This 230V alarm becomes wireless with the simple addition of the wireless base. It can even be tested or hushed with the optional remote control.

Standard features include green and red LEDs as indicators, separate hush and test buttons, auto reset afer activation, latching LED to identify the initiating alarm and up to 6 months operation on the backup battery in the event of mains failure.

The Slick 3SFW (formerly 3SF23/9hi) is designed to go into alarm at 57 degrees Centigrade, a heat detector will not cause nuisance alarms from burnt toast and steam. The Slick wireless can be mixed with Kidde Slick, Kidde CO and Kidde Firex hard-wired alarms.
Heat alarms are suitable for kitchens, garage and dusty rooms - a house should also have a combination of optical and ionisation
Fixing requires two little screws and wallplugs (included) to screw to ceiling and connection into a local lighting circuit with the screwless terminal blocks.

Inter-connecting the alarms is wireless when using the wireless base option for each alarm (base no longer available)

Product Data Sheets

PDF downloadKidde 3sfw data sheet

  • 10-year guarantee
  • Complies with BS 5839 Part 6 Grade D Building Regulations for new housing
  • BSi Kitemarked to BS EN 5446: Pt. 2: 2003, CE Marked and BS 5839 Part 6 Grade D
  • Screwless terminal block for mains wired fast fitting version
  • Backup battery included (with 10-year lithium option)
  • Separate test and hush buttons
  • Interconnectable with mains or wireless alarms of Slick or Firex range
  • Diameter 135mm
  • Depth 60mm including base
  • Manufactured by Kidde
Customer reviews
Average rating:
4.67 (Votes: 9)
Rating of votes (9)
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  • Ian procter
    Mar 23, 2017, 14:58
    Prompt delivery to NI.
  • Evan
    Sep 29, 2015, 22:08
    Have used Fire Protection Online beforeand was very pleased with the service so this time was a bigger order. I had the same fast, efficient, service. Definitely my first choice supplier.
  • Myrto
    Jul 9, 2014, 23:20
    Happy with the service. The order was delivered in two separate parcels but everything was sorted out in the end.
  • John Poole
    May 7, 2014, 16:07
    All good, good price, well packed, sent quickly, what more can one ask ?
  • Nitesh kushalkar
    Dec 12, 2013, 14:57
    Very good service and delivery company.

Kidde Slick Wireless Heat Alarm

    • Model number:
    • £30.87 ex. VAT
      £37.04 inc. VAT
      SAVE £20.12 (39%)
    • Never Beaten on Price
    • 100-day Free Returns
    • Spend £60 + vat for Free Delivery Next working day if ordered before 2pm
    Score: 4.67 (votes: 9)
    Reviews: 9

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