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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-SA40A-R8

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HY-SA40A-R8

Wireless Interconnected Smoke Alarm

Key Points
    · Split-spectrum sensor technology
    · Test and silence features in one single button, silenced by a working infrared remote controller
    · Loud sound output over 85 dB(A) at 3 meters
    · Low quiescent current consumption
    · Surface-mount device (SMD) circuit board design
    · Low battery warning signal
    · Sealed lithium battery, easy installation
    · Wireless interconnected with maximum of 24 devices
Sales Enquiry
Datasheet

Specifications

Working Principle

Collection Type

Smoke

Sampling Period

9 s

Working Principle

Photoelectric

Alarm

Alarm Type

Smoke alarm, fault warning, low battery warning

Alarm Volume

85dB (A) at 3 m (9.84 ft)

Alarm Mode

Visual and audible alarm

Silencing Function

Yes

Silence Duration

9 min

Infrared Silence

Yes

Pre-Set Alarm Value

0.2dB/m-0.3dB/m

Basic Parameters

Indicator Light

Alarm, fault and operation indicator

LED Instructions

Standby: Green indicator flashes once per minute
Alarm: Red indicator flashes once per second
Fault: Red indicator flashes twice per minute

Operating Frequency

868MHZ

Radio Signal Range

Up to 1000 m (3280.84 ft) in open air

Maximum Number of Interconnected Units

24pcs

Coverage Area

When the height of the space is less than 8 m (26.25 ft), the protection area of a device is 20 m2–40 m2

Power Supply

Battery Life

10 years

Power Source

3V CR123A lithium battery (non-replaceable)

Operating Current

Monitoring current: ≤ 15uA (avg.)

Alarm current: ≤ 35mA (avg.)

Operating Ambient

Operating Environment

Indoor

Operating Temperature

-10°C to +55°C (+14°F to +131°F)

Operating Humidity

≤ 95% RH (non condensing)

Appearance

Color

White

Casing

PC+ABS

Dimensions

φ81.5 mm × H51.6 mm (φ3.21" × H2.03")

Weight

110 g (0.24 lb)

Installation

Ceiling Mount

Certification

Certifications

TÜV and CE listed

Compliance Standard

EN 14604:2005+AC:2008

EN 62479:2010

EN 50130-4:2011+A1

EN 301489-1 V 2.2.3:2019

EN 301489-3 V 2.1.1:2019

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