SKU: 54553374625

DAHUA HY-SA30A Standalone Smoke Alarm

Sale price$19.80 Regular price$22.00
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Description

DAHUA HY-SA30A Standalone Smoke AlarmHY SA30A Standalone Smoke Alarm > Split spectrum sensor technology > Test and hush features in one single button > 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 > Built in battery, easy installation Product Data Working Principle Collection Type Smoke Sampling Period 9 s Sensor Type Photoelectric Alarm Alarm Type Smoke alarm, fault alarm,

HY-SA30A

Standalone Smoke Alarm

> Split-spectrum sensor technology
> Test and hush features in one single button
> 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
> Built-in battery, easy installation



Product Data

Working Principle

Collection Type

Smoke

Sampling Period

9 s

Sensor Type

Photoelectric

Alarm

Alarm Type

Smoke alarm, fault alarm, low battery warning

Alarm Volume

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

Alarm Mode

Visual and audible alarm

Silencing Function

Yes

Silence Duration

About 12 min

Alarm Response Threshold

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 once per minute

Low battery warning: Red indicator flashes once per minute

Coverage Area

When the height of the space is less than 8 m (3.28 ft), the protection area of a device is 20 m2–40 m2

Power Supply

Battery Life

10 year

Power Source

3V CR123A lithium battery (non-replaceable)

Operating Current

Monitoring current: ≤ 15uA
Alarm current: ≤ 35mA

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

Plastic

Dimensions

φ98 mm × H43.1 mm (φ3.85" × H1.70")

Weight

136 g (0.30 lb)

Installation

Ceiling Mount

Certification

Certifications

TÜV and CE listed

Compliance Standard

EN 14604:2005+AC:2008

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 54553374625

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Verified Purchase
Dale Moore
Natrona Heights, US
★★★★★ 4
Mockneck tee-shirt
Color: Black, Size: X-Large
I like the feel and fit of this shirt but the neck folds over in the front.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 10, 2026
D
Verified Purchase
Debra Thornton
Natrona Heights, US
★★★★★ 5
Men’s Mock Neck Shirt
Color: Black, Size: Large
Nice quality at a great price. Will buy again.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 4, 2026
B
Verified Purchase
Bruce
Waukegan, US
★★★★★ 5
98% cotton comfort
Color: Black, Size: Large
It's true to size. I have a 42" chest and typically wear a large. I ordered large and it fits. Grab these while you can as most of these mock neck t shirts are a cotton poly blend. These are 98% cotton. This is important because although the cotton/poly blends dry quicker, they are uncomfortably warm if it gets above 70 F. I have purchased other mock turtlenecks and had my local dry cleaners convert them from long sleeves to short, but they are slightly heavier weight than these. I do wish that they made these in a dark green or military green color.
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Reviewed in the United States on March 26, 2026
B
Verified Purchase
Bella
Natrona Heights, US
★★★★★ 1
100% SYNTHETIC CONSTRUCTION!!!
Color: All White, Size: XX-Large, Color: All White, Size: XX-Large
When I bought this shirt, the listing claimed it was 95% cotton and 5% spandex... the shirt that arrived was 51% polyester, 43% viscose and 6% spandex! I have been impressed by some of their other clothing, but this is the first time I was completely lied to and bamboozled. I probably wouldn't have noticed if the shirt wasn't so hot, shiny, and uncomfortable! I will absolutely be returning this shirt. Not even CLOSE to what I wanted. Quite, quite disappointed.
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Reviewed in the United States on April 29, 2026
J
Verified Purchase
jerryejohnson
Boise, US
★★★★★ 3
Just okay for price.
Color: All White, Size: Large
Average quality and fit. The neck is bigger than I would like. Would not purchase again.
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Reviewed in the United States on February 22, 2026

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