The DETA 1111 and 1113 are mains powered smoke alarms with a replaceable 9V alkaline backup battery, and although they are now discontinued, easichange® has created backward compatible replacements that fit the original DETA mounting plates. Designed and tested to attach to existing bases without needing an electrician.
The SBBRKSM mirrors the original alarms’ mains power and 9V backup, with an improved optical sensor technology for better detection of slow, smouldering fires with fewer false alarms. Featuring a central test/hush button for easy maintenance and a hardwire interlink ensuring compatibility with other easichange® alarms even capable of communicating over the same wiring as your old DETA units.
All of our product reviews are written by real customers that have purchased this product from us and are published without modification.
L C
26th January 2026
S H
Great. Works a treat & easy to install
24th January 2026
A A
Easy to change out of date one.
A very good service.
18th January 2026
| Product Code | SBBRKSM |
|---|---|
| Brand | easichange |
| Manufacturer's Part Number | TSS890A-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 EN 14604: 2005 |
| 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 | Bedrooms |
| Hallways | |
| Living Rooms | |
| Power Type | Mains Powered (230V) |
| Recyclable | Yes - Valpak's WEEE Distributor Take-back Scheme |
| Relative Humidity | Up To 93% |
| Sensor Type | Optical |
| Sound Level | 85dB |
| Suitability | Home |
| Warning Type | Audible - Alarm Sounder |
| Warranty | 3 Years |
| Dimensions (Unit) |
|
| Weight | 500g |
| Datasheets |
Good product easy to install