Accessories

Fire alarm accessories are the spare detectors, bases, batteries and add-on devices that keep a fire detection system running and complete an installation. Here you will find 12V standby batteries for fire panels, Apollo Series 65 and ActiV detectors with diode bases, Alarm Sense call points, the FMC Evacuator site alarm push button and the Hispec SMART vape detector.

Electricians on a trade account get trade rates, and we deliver in-stock orders the next working day across NI and ROI when you order by 5pm, Monday to Friday.

BAT18 In-Stock

12 Volt 18.0 Ah Alarm Battery

£64.15 inc. VAT

BAT7 In-Stock

12 Volt 7.0 A.h Battery (suitable for MAG panels)

£18.05 inc. VAT

FMCEVASMPB In-Stock

FMC Evacuator Site Master Push Button

£50.40 inc. VAT

HSSA/VAPE Ships in 3 - 5 days

Hispec SMART Vape Detector

£219.60 inc. VAT

45681-201APO In-Stock

Apollo Series 65 Diode Mounting Base

£4.44 inc. VAT

53832-070APO In-Stock

Apollo MiniDisc Remote Indicator

£11.72 inc. VAT

C4416 In-Stock

ActiV Optical Smoke Detector

£22.21 inc. VAT

C4403A2 In-Stock

ActiV Standard 60ºC Fixed Temp. Heat Detector

£12.10 inc. VAT

C4403B In-Stock

ActiV High 75ºC Fixed Temp. Heat Detector

£13.06 inc. VAT

C4403A1R In-Stock

ActiV Rate of Rise Heat Detector

£13.06 inc. VAT

C4408D In-Stock

ActiV Diode Base

£4.07 inc. VAT

BF433C/CC/SR Ships in 3-5 days

ActiV Conventional Hi-Output W-2.75-9 Wall VAD c/w 100dB(A) Sounder (shallow base)

£55.12 inc. VAT

BAT32 In-Stock

ESP 12 Volt 3.2Ah SLA Battery

£32.82 inc. VAT

55000-317APO In-Stock

Apollo Series 65 Optical Smoke Detector

£27.17 inc. VAT

How to choose fire alarm accessories and spares

Accessories are mostly about compatibility. A spare detector, base or battery must match the panel, protocol and existing devices on the system, so start with what is already installed.

Standby batteries

Fire panels rely on sealed lead acid (SLA) batteries to keep the system live during a mains failure. We stock 12V batteries in 3.2Ah, 7Ah and 18Ah capacities. Check the panel manufacturer's battery calculation and the connector type before ordering, and replace batteries at the interval recommended in the panel's documentation.

Detectors and bases

Optical smoke detectors: ActiV, Alarm Sense and Apollo Series 65 for general areas.
Heat detectors: ActiV 60°C standard and 75°C high fixed-temperature models, plus a rate-of-rise detector, for kitchens, boiler rooms and dusty spaces.
Diode bases: allow a detector head to be removed without breaking zone monitoring on conventional systems.
Remote indicators: the Apollo MiniDisc shows when a hidden detector, such as one in a ceiling void, has activated.

Detectors need to suit the panel type; Alarm Sense devices, for example, are designed for two-wire systems. See our conventional fire systems for compatible panels.

Sounders, call points and specialist devices

The ActiV hi-output wall VAD with 100dB(A) sounder gives audible and visual warning, while Alarm Sense manual call points and the FMC Evacuator site push button cover manual activation. The Hispec SMART vape detector helps manage vaping in washrooms and similar spaces.

Compliance and wiring

Changes to a fire alarm system should be carried out by a competent person and recorded in the system logbook. Use fire-resistant cable where the design requires it and follow current standards and the manufacturer's instructions.

Order from our Cookstown warehouse with free delivery over £30 / €35 ex VAT, or call 028 8675 1515 (048 from ROI) on weekdays, 8am–5pm.

FAQ's Ask Your Own Question

What size battery does my fire alarm panel need?: The required battery capacity depends on the panel's standby and alarm current and the length of standby time the system must provide. Panel manufacturers publish a battery calculation or a recommended size, commonly 12V units such as 3.2Ah, 7Ah or 18Ah. Check the panel documentation and fit matching batteries, usually in pairs.
How often should fire alarm panel batteries be replaced?: Sealed lead acid standby batteries are commonly replaced every few years, but the correct interval depends on the battery manufacturer, the panel and the operating temperature. Servicing engineers test battery condition during routine maintenance and replace them when capacity drops. Follow the manufacturer's guidance and record replacements in the logbook.
What is a diode base on a fire detector?: A diode base lets a detector head be removed from a conventional zone without disabling the detectors further along the circuit. The panel still registers a fault for the missing head, but the rest of the zone keeps working. Diode bases are often required where an end-of-line device is used, so check the panel and detector instructions.
Can I mix detector brands on a conventional fire alarm zone?: Sometimes, but it is not guaranteed. Conventional detectors from different manufacturers can have different alarm currents and base wiring, and some panels are only approved with specific ranges. Two-wire systems are especially brand specific. Check compatibility with the panel manufacturer before mixing devices on one zone.
What is a vape detector used for?: A vape detector senses aerosol from e-cigarettes in areas where smoking and vaping are not allowed, such as school toilets, washrooms and changing rooms. Unlike a fire alarm detector, it is intended to alert staff rather than trigger an evacuation. Check how the Hispec SMART model reports alerts before planning the installation.
Can I collect fire alarm spares instead of waiting for delivery?: Yes. Click & Collect is available from our trade counter in Cookstown, Co. Tyrone. If you prefer delivery, in-stock items ordered by 5pm Monday to Friday arrive the next working day across Northern Ireland and the Republic of Ireland, with free delivery over £30 / €35 ex VAT.