SKU: 968667766

DAHUA HY-GC30A Standalone Carbon Monoxide Alarm

Sale price$45000.00 Regular price$50000.00
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Description

DAHUA HY-GC30A Standalone Carbon Monoxide AlarmHY GC30A > High performance electrochemical CO sensor to deliver accurate detection of carbon monoxide leakage and respond quickly > Long standby time, low power consumption, 10 year battery life > Temperature and humidity measurement: Display current temperature and humidity alternately without the presence of CO > Screen display: Blue backlight function is user friendly to read information > Support low battery warning, one click silence, and self

HY-GC30A

> High-performance electrochemical CO sensor to deliver accurate detection of carbon monoxide leakage and respond quickly

> Long standby time, low power consumption, 10-year battery life

> Temperature and humidity measurement: Display current temperature and humidity alternately without the presence of CO

> Screen display: Blue backlight function is user-friendly to read information

> Support low battery warning, one-click silence, and self-test

> Informative and easy-to-read CO concentration display in screen.

> Three indicator lights for displaying device status clearly

Working Principle

Collection Type

Carbon Monoxide (CO)

Sensor Type

Electrochemical

Alarm

Alarm Type

CO alarm, fault warning, low battery warning

Alarm Volume

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

Alarm Mode

Visual and audible alarm

Silence Function

Support

Silence Duration

About 9 minutes

Alarm Response Threshold

50 ppm: 60 min–90 min

100 ppm: 10 min–40 min

300 ppm: < 3 min

Basic Parameters

Display

LCD

Indicator Light

LED (red/yellow/green)

LED Instruction

Alarm: Red indicator
Fault: Yellow indicator
Power: Green indicator

Power Supply

Battery Life

10 years

Power Source

3V CR17450A lithium battery (non-replaceable)

Operating Current

Standby Current: ≤20uA
Alarm Current: ≤20mA

Operating Ambient

Operating Environment

Indoor use only

Operating Temperature

–10°C to +40°C (+14°F to +104°F)

Operating Humidity

≤95% RH (non condensing)

Environmental Measurement

Temperature Accuracy

±0.1°C typical

Humidity Accuracy

±1.5%RH typical

Appearance

Color

White

Material

PC + ABS

Dimensions

133.5 mm × 63.5 mm × 28.9mm (5.26” × 2.50” × 1.14”)

Weight

123 g (0.28lb)

Installation

Wall mount/Free standing

Certification

Certifications

TUV, CE and UKCA listed

Compliance Standard

EN 50291-1:2018 and BS EN 50291-1:2018

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: 968667766

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4.5 ★★★★★
Based on 6 reviews
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Product Reviews
J
Verified Purchase
Jennifer L Cremata
Charlottesville, US
★★★★★ 5
Very healing
I bought this for face but had also heard that this can be used for other skin issues. Yesterday, I cut my index finger with a label remover (basically a razor blade). Once I stopped the bleeding, I kept it clean and covered for a bit. Before bed, I decided to put a dab of this on my cut, when I woke up this morning, it's like a miracle! It barely hurts and looks quite healed!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 20, 2026
D
Verified Purchase
DWF
Belleville, US
★★★★★ 5
It works... very well... for me. VERY WELL.
I typically detest American companies as many of the products contain both harmful and helpful ingredients at the same time. So far, Prequel has EXCEEDED my expectations. PROS: It works for my skin. EWG gives good scores to Prequel also. Skin looks great afterwards. No scent. Lasts for hours with a healthy skin tone. You don't have to use a lot to cover an area (see below). CONS: Slightly greasy when applied so it not a lightweight cream. Small tube (see below). Pricey. You don't have to use a lot. I find that due to its slightly greasy nature, you can use much less to cover a greater area. Afterwards the greasiness disappears, leaving plump, healthy feeling skin texture. As with any skincare product, your skin may react differently. I have tried major Western brands which worsened my skin (Cereva for instance) before switching to Korean & Japanese products (far superior). Prequel is now the only Western brand I will use on a regular basis, to include their bar of soap (superior to my regular Korean brand).
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on September 14, 2025
U
Verified Purchase
UrbanUtah
Omaha, US
★★★★★ 5
Great dry spot treatment!
Worked wonders on winter dry patches on my cheeks and sides of mouth. I’m a somewhat new Prequel product user. I follow the creator on YouTube and love her skincare videos. I have tried a few products so far and have been happy with the results. I just ordered the foot repair ointment for my husband as well. I think this brand is a great value for the money. I have not had any bad reactions so far and I have VERY sensitive skin. This ointment is lightweight and melts into my skin well and the next morning my dry spots were literally invisible. It’s fragrance free, I did not notice any scent at all, which is importance to me.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 3, 2026
G
Verified Purchase
gina
Dallas, US
★★★★★ 4
Prequel is always great
Very soothing and calming for skin. Tube lasted a long time. I have sensitive skin and often have reactions but did great with this.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 14, 2026
K
Verified Purchase
Kitkat
Belleville, US
★★★★★ 5
This is a barrier cream?
I also have very oily skin, so normally I stay away from anything that says barrier or balm. I push skin a lot lol...with max strength tretinoin, glycolic acids, salicylic acids, vitamin C... so there are times when I just need max help from a richer product bc sometimes I take it too far. LRP Cicaplast has been a staple and has saved me many a times. I bought this bc of the high percentage of ectoin, 5%, and it was so reasonably priced. When I squeezed the tube, I was really worried, it was thicker looking than the Cicaplast. However, when I spread it out, it was SO light and a tiny amount --barely a pea size, was enough to coat my face. It did not feel heavy. Even with my oily skin, I think I could wear this everyday. As an experiment, I applied any excess on one side of my hand, as I'm right handed, I would apply it on my left hand. I've had this about a week, and right now after doing the dishes, and washing my hands multiple times without any hand cream on it, my right hand is definitely drier than my left hand. My left hand also looks less red and more calm. This formula is 5 stars for both the effectiveness and the elegant formula. It may yet replace my LRP Cicaplast...we'll see!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on November 6, 2025

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