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DETA 1113 Mains Powered Optical Smoke Alarm

Discontinued Product - No Compatible Replacement

Please Note: The manufacturer has withdrawn from the European market and there is no compatible alternative that will fit onto your existing. Since it is not possible to interlink alarms from different manufacturers, new alarms will be needed throughout. The recommended replacement for the whole discontinued DETA range is the Kidde Firex series. This will require an electrician to replace your old DETA bases with new Kidde bases.

alternative product

Kidde Firex Mains Powered Alarms with Alkaline Battery

  • 230V mains powered with alkaline back-up battery
  • Available in Optical and Heat versions
  • Interlink with up to 24 units
  • Suitable for BS 5839-6: 2019 Grade D2 installations
  • Kitemarked and CE marked
  • Please note: alarms are sold individually
  • Also suitable for both the Welsh and Scottish 2022 legislation

£21.00 inc VAT

£17.50 ex VAT

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Product Overview

The DETA 1113 is a mains powered smoke alarms with a replaceable 9V alkaline back-up battery. As the DETA alarms are now discontinued, BRK have developed their 600MBX range to be fully backward-compatible with your outgoing and remaining DETA alarms and bases. The 660MBX is the ideal replacement for the 1113 alarm as it has been designed and tested to fit onto your existing alarm bases so you don’t even need an electrician.

The BRK 660MBX is an optical smoke alarm with alkaline battery backup. The thermally enhanced sensor makes it ideal for installing in hallways, bedrooms, landings and living areas, including those rooms adjacent to kitchens (but not within kitchens). Less advanced alarms can be triggered by cooking fumes – the optical sensor in the 660MBX will reduce this significantly. A central test/hush button makes maintenance of your alarm quick and simple. The replaceable 9V back-up battery will ensure you remain protected even in the event of a power cut.

  • Suitable for bedrooms, living rooms and downstairs hallways
  • Power: 230V mains powered with back-up battery
  • Back-up Battery: 9V alkaline back-up battery (included)
  • Warranty: 5 year manufacturer's warranty
  • Fits onto your existing DETA alarm base
    • BRK twist-fit base included to keep as a spare
  • Optical sensor provides quick detection of slow, smouldering fires
  • CE and Kitemarked to BS EN 14604: 2005
  • Performs its own self-checks every 48 seconds to ensure the alarm is functioning correctly
  • Test & silence button feature
  • Replacement also available for the DETA 1111 mains powered ionisation smoke alarm
  • Product warranty and life commences from date of purchase

The simple installation process of the 660MBX replacement alarm negates the need for an electrician, though you must ensure that mains power to all interlinked alarms is turned off before beginning work. The interlink wire can carry a live electric current between alarms if they are powered from different circuits.

Compatible Alarms

Below is a table of all alarms which can be interchanged using the same base plate and interlink system. Care should be taken to ensure the correct model is purchased to replace existing alarms. Optical smoke alarms can be used in place of ionisation smoke alarms, but heat alarms and smoke alarms serve different purposes and cannot be swapped.

Original Model Type of Alarm Replacement Model
DETA 1111 Ionisation Smoke Alarm with Alkaline Battery and Twist Base DT11RA
DETA 1113 Optical Smoke Alarm with Alkaline Battery and Twist Base Discontinued
DETA 1115 Heat Alarm with Alkaline Battery and Twist Base Discontinued
DETA 1151 Ionisation Smoke Alarm with Alkaline Battery and Push Base DT51RA
DETA 1153 Optical Smoke Alarm with Alkaline Battery and Push Base Discontinued
DETA 1155 Heat Alarm with Alkaline Battery and Push Base Discontinued
Technical Data
Product Code DT13RA
Alternative Product Codes 1113, DETA1113, BRK660MBX, BRKEOA
Brand BRK
Back-Up Battery

Replaceable 9V Alkaline

Dimensions (HxDia)

44 x 140mm (including base)

Operating Temperature

+5°C to +38°C

Relative Humidity

10% to 85%

Sound Output


Weight 0.27kg
Product Datasheets

Excellent Warranty

This product is supplied with a 5 year manufacturers warranty as standard

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