Wireless Indoor Smoke & Heat Detector – Detects Smoke and Rapid Temperature Rise – Up to 4‑Year Battery Life

Wireless indoor smoke and heat detector that quickly detects smoke and rapid temperature increase and triggers an instant alarm. It securely connects to the Ajax system via the Jeweller protocol with up to 1300 m communication range and features a built‑in siren to alert occupants of fire or smoke danger. With long battery life of up to 4 years, it’s an effective addition to home or business security.