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, BRK have developed their range of alarms to be completely compatible with existing DETA alarm bases. This means that you don't even need an electrician to install the replacement.
The recommended direct replacement for the DETA 1115 is the BRK 690MBX. This too is a mains powered heat alarm with alkaline battery back-up. Heat alarms are ideal for locations where smoke alarms may be falsely triggered by regular household fumes such as kitchens and garages. The new alarm features a dedicated test & hush button, and user replaceable 9V alkaline backup battery.
- 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
- Suitable for kitchens, garages and home workshops
- Thermistor heat sensor provides resilience against false alarms from everyday fumes
- CE and Kitemarked to
- Performs its own self-checks every 48 seconds to ensure the alarm is functioning correctly
- Test & silence button feature
- Replacement also avalable for the DETA 1111 and 1113 mains powered smoke alarms
- Other DETA / BRK replacement kits are available to cover the full DETA 1110 and 1150 series
The simple installation process of the 690MBX replacement alarm 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.
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 |
Key Product Features
The 690MBX will interlink with your remaining DETA alarms
LED indicators show power supply and alarm activity status
Combined Test-Hush button to check function & silence alarms
Made by the original alarm manufacturer
What's Included?
Every DETA DT15RA is supplied with the following components.
- 1 x BRK 690MBX heat alarm
- 1 x 9V replaceable alkaline battery
- 1 x Spare twist-fit base
- 1 x Screw fixing set (screws & rawl plugs)
- 1 x Instruction manual