Wisualarm DHI-HY-GC20D-R8 Zigbee Carbon Monoxide Detector, Battery-Powered, EN 50291-1 Certified, White

The Wisualarm DHI-HY-GC20D-R8 stands out from typical CO detectors by combining wireless Zigbee 3.0 connectivity with a battery-powered design that installs in minutes—no wiring, no hub required for basic operation, and seamless integration into smart home ecosystems. Its electrochemical sensor delivers precise, maintenance-free carbon monoxide monitoring for up to three years on a single pair of CR123A batteries, making it a practical choice for homes, rental properties, and small offices where wired systems are impractical.

Highlights

• Wireless Zigbee 3.0 protocol for reliable smart home integration and remote alerts
• Battery-powered with 2x CR123A cells, offering up to 3 years of continuous protection
• Loud ≥85 dB alarm at 3 meters plus bright LED visual indicator for immediate awareness
• Certified to EN 50291-1:2018, ensuring compliance with European safety standards
• Flexible wall or ceiling mounting with included hardware for quick installation
• Built-in test function and end-of-life warning to keep the device in optimal condition

In daily use

Once paired with a compatible Zigbee hub, the DHI-HY-GC20D-R8 sends real-time CO concentration alerts to your smartphone, allowing you to respond even when away from home. The detector responds to dangerous CO levels according to EN 50291 thresholds: at 50 ppm it alarms within 60–90 minutes, at 100 ppm within 10–40 minutes, and at 300 ppm in under 3 minutes. A low-battery indicator and audible end-of-life signal eliminate guesswork about device status, while the white, low-profile housing blends discreetly into any room.

Full specifications

• Detection principle: Electrochemical
• Detected gas: Carbon monoxide (CO)
• Connectivity: Wireless, Zigbee 3.0 (IEEE 802.15.4)
• Power source: Battery (2x CR123A, included)
• Battery life: Up to 3 years
• Alarm volume: ≥85 dB at 3 meters
• Operating temperature: -10°C to +55°C
• Operating humidity: 0% to 95% RH (non-condensing)
• Certification: EN 50291-1:2018
• Mounting: Wall or ceiling
• Indicators: Audible alarm, visual LED, low battery, end-of-life
• Test function: Yes (manual test button)
• Colour: White

Final note

For households seeking a certified, maintenance-light carbon monoxide alarm that fits into a modern smart home, the Wisualarm DHI-HY-GC20D-R8 delivers dependable protection without the clutter of wires or frequent battery changes.