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Dahua MultiVision 2.0 Expands Intelligent Monitoring with Wider Coverage, Sharper Details, Smarter Analytics and Easier Deployment

2026-05-28

Dahua MultiVision 2.0 Expands Intelligent Monitoring with Wider Coverage, Sharper Details, Smarter Analytics and Easier Deployment

HY-GA20A-R8

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HY-GA20A-R8

Wireless Interconnected Natural Gas Alarm

Key Points
    Wireless Interconnected Natural Gas Alarm
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Datasheet

Specifications

Technical Specification

Collection Type

Methane (CH₄)

Sampling Period

200 ms

Working Principle

Semiconductor

Alarm Type

Gas alarm, fault warning, End of Life warning

Alarm Volume

70 dB (A) at 1 m (3.28 ft)

Alarm Mode

Visual and audible alarm

Output

1 valve output, 1 relay output

Silencing Function

Support

Indicator Light

Alarm, Fault, Power, and EoL

LED Instructions

Alarm: Red indicator

Fault: Yellow indicator

Power: Green indicator

Eol: Yellow indicator

Operating Voltage

DC12V

Operating Environment

Indoor

Operating Temperature

–10°C to +55°C (+14°F to +131°F)

Operating Humidity

≤95% RH (non condensing)

Communication

868 MHz (-R8)/925 MHz (-R9)

Color

White

Casing

PC+ABS

Weight

123 g (0.28 lb)

Dimensions

118.0 mm × 78.0 mm × 33.7mm (4.65" × 3.07" × 1.33")

Installation

Wall mount

Certifications

CE, UKCA, PSTI

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