Ajax FireProtect 2 AC (Heat) is a mains‑powered wireless heat detector for residential and light‑commercial applications. Part of the Ajax Jeweller ecosystem, it uses Class A1R thermistors to detect rapid temperature rises and static over‑threshold events. The device includes a built‑in 85 dB siren and LED status indicators and supports fast hub‑initiated and direct fallback interconnection to alert other detectors.

• Class A1R heat detection: high‑temperature threshold and rapid‑rise detection.
• Mains powered (110–240 V~) with sealed backup battery for continued protection during outages.
• Built‑in 85 dB siren and multi‑state LEDs for alarm, power and fault indication.
• Wireless Jeweller two‑way encrypted communication with up to ~1,700 m open‑space range (region dependent).
• Fast interconnection: hub‑initiated cascaded alarms (~20 s) and direct fallback interconnection if hub is unreachable.
• Tamper protection and device authentication to guard against removal and spoofing.

Use cases: Ideal for homes, flats and small commercial premises where heat detection (rather than smoke) is required — kitchens, boiler rooms, garages and similar spaces where smoke detectors may produce false alarms.

Compliance & safety: Fire detector elements meet EN 54‑5 and BS 5446‑2 specifications for Class A1R heat detectors (refer to the official Ajax documentation and device manual for full compliance statements). Installation and wiring must follow local electrical and fire safety regulations. For UK installations follow current guidance on fire detection placement and wiring; if in doubt, use a qualified installer.

Notes: The AC variant contains a sealed backup battery (non‑replaceable) and is designed for a service life of the detector’s sensors per Ajax guidance (replace at end of service life as advised by manufacturer). Always consult the Ajax user manual for testing, maintenance and mounting height guidance.