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Dahua HY-SA20A Wireless Smoke Alarm

Product "Dahua HY-SA20A Wireless Smoke Alarm"

Dahua Wisualarm HY-SA20A is a standalone optical smoke detector with a built-in lithium battery lasting up to 10 years. Its split-spectrum sensing chamber detects both fast-flaming and smouldering fires while reducing false alarms. The device works on its own, without a control panel.

Key Advantages and Features:

  • Optical smoke detection: Split-spectrum chamber for fast and smouldering fires
  • 10-year battery: Built-in lithium battery, maintenance-free lifespan
  • Loud alarm: 85 dB audible alarm on fire
  • Fewer false alarms: Split-spectrum technology distinguishes dust and steam
  • Test & silence button: One-button test and temporary silence
  • Certified: TÜV / CE, complies with EN 14604

Technical Specifications:

ParameterSpecification
Sensor typeOptical (photoelectric), split-spectrum chamber
Sound level85 dB
Coverage areaUp to 40 m²
Detection rangeUp to 3 m
Power1 × CR123A 3 V lithium battery (built-in)
Battery lifeUp to 10 years
StandardEN 14604:2005+AC:2008, TÜV / CE
Operating temperature-10 °C to +55 °C
Weight~136 g

Best suited for: homes, apartments and accommodation where a maintenance-free, ready-to-use smoke alarm is wanted without wiring or a control panel.

Properties "Dahua HY-SA20A Wireless Smoke Alarm"
Alarm device type: Sensor
System: Standalone
Datasheets
Datasheet (PDF)

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Manufacturer "Wisualarm"

Wisualarm is Dahua's alarm systems brand.

We stock standalone detectors — a smoke detector and a gas leak detector — that also work on their own, without a control panel.

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