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Easichange Replacement for DETA 1115 Mains Powered Heat Alarm

deta1115 twist replacement heat alarm showing product and mounting diagram with coloured arrows indicating connections
4.8 out of 5 stars

20+ In Stock

Estimated dispatch: Tomorrow

£24.98 inc VAT

£20.82 ex VAT

Standard Delivery

Will usually be delivered in 2-3 working days

£4.20 inc VAT

Next Day Delivery

Will usually be delivered the next working day

£7.00 inc VAT

The DETA 1115, which has been discontinued by the manufacturer, is a mains powered heat alarm with 9V alkaline battery back-up. To ensure that DETA 1100 series alarm owners can continue to update their systems, easichange® have developed a range of replacements to be fully backward-compatible with your outgoing DETA alarms and their mounting plates. The SBBRKHE is the ideal replacement for the 1115 alarm as it has been designed and tested to fit onto your existing alarm bases so you don't even need an electrician.

The SBBRKHE is a mains powered heat alarm with a replaceable 9V alkaline backup battery like the DETA 1115 that it replaces. Heat alarms detect the temperature of the room they're in and activate when it gets abnormally hot, typically from 55°C. They are designed for rooms like kitchens and garages where steam, fumes, and dust are expected to cause false activations in smoke alarms. A central test/hush button makes maintenance of your alarm quick and simple. Featuring a hardwire interlink allowing compatible easichange® alarms to communicate with each other over the same wiring as your old DETA alarms, so that all will sound the alarm if one detects a fire.

  • Suitable for kitchens, garages, and unconverted lofts or basements
  • Power: 230V mains powered with back-up battery
  • Back-up Battery: 9V alkaline back-up battery (included)
  • Warranty: 3 year manufacturer's warranty
  • Simple replacement process with Quick Change Guide
  • Fits onto your existing DETA alarm mounting plate and electrical connector plug
  • Heat sensor detects high ambient temperatures indicative of a fire
  • Supplied with FREE easichange® replacement tool
  • Heat alarm CE Marked, UKCA Marked, and Kitemarked to BS 5446-2: 2003
  • Adaptor plate and assembled replacement alarm tested and approved by TÜV Austria
  • Complies with BS 5839-6: 2019 Grade D2 requirements
  • Performs its own self-checks every 48 seconds to ensure the alarm is functioning correctly
  • Test and silence button feature
  • Replacement also available for the DETA 1111 & 1113 mains powered smoke alarms

The simple installation process of the easichange® replacement kits negates the need for an electrician, though you must ensure that mains power to all interlinked alarms is cut before beginning work. The interlink wire can carry a live electric current between alarms if they are powered from different circuits.

Please Note: We recommend replacing all alarms in the system together to maintain optimum system operation; failing to do so may compromise interlink performance.

Customer Reviews

Customer Reviews (6)

4.8 out of 5 stars

Reviews by Real Customers

All of our product reviews are written by real customers that have purchased this product from us and are published without modification.

Rating: 5 / 5

Reviewed by

I B

Published on

10th January 2026

Excellent replacement

Rating: 4 / 5

Reviewed by

C G

Published on

4th August 2025

Good quality direct replacement product

Rating: 5 / 5

Reviewed by

D D

Published on

29th July 2025

Clever and convenient way to replace smoke detectors

I needed to replace an out of date smoke detector. This product provides a quick and easy way to do and reuse the fixed part of the installation. Recommended.

Rating: 5 / 5

Reviewed by

R C

Published on

17th July 2025

Replaced my old detector in 1 minute using existing base

Rating: 5 / 5

Reviewed by

M D

Published on

11th November 2024

Great replacement

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Technical Data

Technical Data

Product Code SBBRKHE
Brand easichange
Manufacturer's Part Number THS893A-HI
Approvals & Markings CE Marked
UKCA Marked
Back-Up Battery Type Alkaline
Battery Type 9V Battery
Alkaline
British Standard Grade Grade D2: Mains Powered (replaceable backup)
Colour White
Compliance BS 5446-2: 2003
Connection Wired
Display LED Indicators
Fixing Options Screws (included)
Installation Position Ceiling
Material Plastic
Maximum Number of Linked Devices 12 Devices
Operating Temperature 0°C To +40°C
Positioning Garages
Kitchens
Power Type Mains Powered (230V)
Recyclable Yes - Valpak's WEEE Distributor Take-back Scheme
Relative Humidity Up To 93%
Sensor Type Heat
Sound Level 85dB
Suitability Home
Warning Type Audible - Alarm Sounder
Warranty 3 Years
Dimensions (Unit)
  • Height: 80mm
  • Diameter: 140mm
Weight 500g
Datasheets