Sanders Secure | Fire Alarm System Selector

Important: this is a pre-quote decision aid, not an automatic fire-alarm design or compliance certificate. The fire-risk assessor/fire-safety specialist determines the required category. The final design still needs to meet the applicable British Standard, product approvals, site conditions, radio survey, audibility/VAD requirements, standby, interfaces and documented variations.

1 What type of premises/system is this?

System basis

Example: alarms inside a normal flat are generally Part 6; a communal landlord system may be Part 1.

Premises type

2 What does the FRA/specification actually call for?

3 Are there any written restrictions?

The specification explicitly requires hardwired field devices or says radio/wireless is not acceptable. The specification explicitly requires an addressable fire alarm system. The specification explicitly requires a conventional fire alarm system. The specification requires an EN54 CIE/panel-based system. Existing compliant fire cabling/loops are specifically intended to be reused. The customer specifically wants an Ajax wireless solution if permitted.

4 What is the site like?

Approximate number of fire devices

Approximate number of zones

Commercial/communal sleeping risk such as care, hotel, hostel or similar. Complex cause-and-effect: lifts, AOVs, door releases, plant shutdowns, multiple I/O functions, etc. Individual device identification would be particularly useful/required for management or response. The fire strategy calls for voice alarm / evacuation system rather than ordinary sounders alone. A proper radio survey has been/will be completed and wireless coverage appears achievable. For a domestic job, suitable permanent mains supplies can be provided at every required detector position.

5 Run the check

Green = strongest fit from the information entered. Amber/blue = possible but needs design/specification checks. Red = does not match the stated requirement.

Reference basis used by this tool: BS 5839-1:2025 category structure (M, L1–L5, P1–P2); BS 5839-6:2019+A1:2020 domestic grades/categories; Ajax FireProtect 2 AC documentation identifying Grade D1; Ajax FireProtect 2 SB documentation identifying Grade F1; Ajax EN54 Fire Hub/EN54 Line documentation; current C-TEC CFP conventional and XFP/CAST addressable product families. Verify the latest standard, product certification and project specification before use. Tool version: August 2026.

Fire Alarm System Selector

1 What type of premises/system is this?

2 What does the FRA/specification actually call for?

BS 5839-6 domestic information

BS 5839-1 commercial/communal information

3 Are there any written restrictions?

4 What is the site like?

5 Run the check