Ajax HomeSiren Black | 2-Way Wireless Indoor Siren with LED Indicator, 81-105dB Adjustable Alarm

Alert and deter intruders effectively with the Ajax HomeSiren Black—a compact 2-way wireless indoor siren that delivers powerful notifications during alarm activations from motion detectors, door sensors, or other Ajax devices. Designed for discreet indoor installation in homes, apartments, or offices, this siren produces adjustable sound levels from 81 to 105 dB at 1m, with customizable alarm durations from 3 seconds to 15 minutes, ensuring timely warnings without overwhelming the space. The built-in LED indicator visually signals armed/disarmed status, entry/exit delays, and post-alarm events with green or red blinks, while supporting an optional external LED connection for enhanced visibility. Operating on the secure Jeweller protocol, it communicates bidirectionally up to 2,000 meters in open spaces, with tamper protection, jamming detection, and frequency hopping for reliable performance. Ready out of the box with pre-installed CR123A batteries lasting up to 5 years, it pairs in seconds via QR code and allows remote volume, duration, and Chime settings through Ajax apps for iOS, Android, macOS, or Windows—perfect for up to 10 sirens per hub in scalable systems.

Features:

• Adjustable 81-105 dB Sound Level: Customizable volume (Quiet: 81 dB, Loud: 93 dB, Very Loud: 105 dB at 1m) via Ajax apps, balancing deterrence with comfort for indoor environments.
• Customizable Alarm Length 3s-15min: Set precise durations for alarms, Chime notifications, or entry/exit delays to suit your security scenarios and reduce false alarm fatigue.
• Built-in LED Status Indicator: Blinks green for armed/disarmed and red for alarms, providing visual feedback; firmware 5.55.1.0+ enables continuous armed indication to deter tracking.
• External LED Connection Option: Terminal for third-party LEDs ensures status visibility in hidden locations, enhancing overall system awareness without compromising aesthetics.
• 2,000m Two-Way Jeweller Communication: Secure bidirectional protocol with AES encryption and frequency hopping resists jamming, delivering activations in <0.3 seconds up to 2,000m.
• Tamper and Jamming Protection: Built-in tamper sensor triggers alerts if opened or detached; automatic jamming detection notifies users and CMS for immediate response.
• Up to 5 Years Battery Life: Two pre-installed CR123A batteries with low-level alerts ensure autonomous operation; IP50-rated for indoor dust protection (-10°C to +40°C).
• Chime Feature for Disarmed Alerts: Plays customizable beeps on door openings when disarmed (firmware 3.73.1.0+), acting as a visitor notifier or shop bell.
• Effortless QR Code Pairing: Connects to Ajax hubs in under 30 seconds via app scan; supports up to 10 sirens/keypads per system for multi-zone coverage.
• Remote App Control: Adjust settings, test remotely, and receive event logs on iOS, Android, macOS, or Windows, with over-the-air firmware updates for ongoing enhancements.