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  8. Addressable CO Detector
  9. Addressable CO Detector
    Dahua

    Addressable CO Detector

    Stock Code: HY-AF640R

    Reports carbon monoxide build-up by concentration level
    The addressable CO detector measures carbon monoxide across 0–1000 ppm and stages its alarm by concentration. The integrated dry contact relay is set as NO or NC.
    0–1000 ppmCO Detection Range
    24 V DCOperating Voltage
    ≤ 5 mAAlarm Current
    –5°C ~ +45°COperating Temperature
    Ceiling mountInstallation
    CECertification
    Key features
    Staged alarmIt alarms within 10 minutes at 100 ppm and instantly at 300 ppm.
    Early warningIt alerts within 120 minutes at 30 ppm and goes into alarm within 60 minutes at 50 ppm.
    Dry contact relayThe integrated relay is set as NO or NC and triggers external devices.
    Low drawStatic current stays at 1 mA or below and alarm current at 5 mA or below.
    Ceiling mountIt mounts on the ceiling, and non-loosening screws on the base terminal speed up installation.
    Durable contactsThe contact material resists acid and rust, and the detector carries CE certification.
    Technical Specifications
    Working Principle CO (Carbon Monoxide) Detection
    Operating Voltage 24 V DC
    Operating Current Static current: ≤ 1 mA
    Alarm current: ≤ 5 mA
    Alarm Mode Indicator light alarm
    Operating Temperature –5°C ~ +45°C (+23°F ~ +113°F)
    Operating Humidity ≤ 95% RH (no condensation)
    Dimensions Φ100 mm × 46.3 mm (Φ3.94" × 1.82")
    Weight 110 g
    Color White
    Installation Ceiling mount
    Detection Capability Detection range: 0–1000 ppm CO
    Alarm triggers:
    30 ppm: ≤ 120 min alert (no prior alarm)
    50 ppm: ≤ 60 min (new) / ≤ 90 min (existing alarm)
    100 ppm: ≤ 10 min (new) / ≤ 40 min (existing alarm)
    300 ppm: instant (new) / ≤ 3 min (existing alarm)
    Certification CE

    Datasheet

    HY-AF640R

    18/7/2025

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