SKU: 51761435098

DAHUA HY-GC20B-R8 Wireless Interconnected Carbon Monoxide Alarm

Sale price$30.60 Regular price$34.00
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Ships within 48 hours · Estimated delivery Aug 9 - Aug 14

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Description

DAHUA HY-GC20B-R8 Wireless Interconnected Carbon Monoxide AlarmHY GC20B R8 Wireless Interconnected Carbon Monoxide Alarm > High performance Figaro electrochemical CO sensor to deliver accurate detection of carbon monoxide leakage and respond quickly > Long standby time, low power consumption, 7 year battery life > Three separate LED indicators to provide clear and apparent working status illustration > Built in high volume buzzer with alarm volume 85dB (A) at 3 m (9. 84 ft) > Support low battery warning, one

HY-GC20B-R8 

Wireless Interconnected Carbon Monoxide Alarm

> High-performance Figaro electrochemical CO sensor to deliver accurate detection of carbon monoxide leakage and respond quickly
> Long standby time, low power consumption, 7-year battery life
> Three separate LED indicators to provide clear and apparent working status illustration
> Built-in high-volume buzzer with alarm volume 85dB (A) at 3 m (9.84 ft)
> Support low battery warning, one-click silence, and self-test
> Peak level display function to inform users extra potential hazards in home
> Informative and easy-to-read CO concentration display in screen
> Wireless interconnected with maximum of 24 devices
> End of life warning: LCD display shows End with the buzzer beeping and LED indicator flashing three times per minute



Product Data

Working Principle

Collection Type

Carbon Monoxide (CO)

Sensor Type

Electrochemical

Alarm

Alarm Type

CO alarm, fault alarm, low battery warning

Alarm Volume

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

Alarm Mode

Visual and audible alarm

Silence Function

Support

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

Operating Frequency

868MHz

Radio Signal Range

Up to 1000 m (3280.84 ft) in open air

Maximum Number of Interconnected Units

24pcs

Power Supply

Battery Life

7 years

Operating Voltage

3V DC

Operating Current

Monitoring Current: ≤20uA
Alarm Current: ≤20mA

Operating Ambient

Operating Environment

Indoor use only

Operating Temperature

–10°C to +55°C (+14°F to +131°F)

Operating Humidity

≤95% RH (non condensing)

Appearance

Color

White

Material

PC + ABS

Dimensions

116.4 mm × 71.7 mm × 29.1 mm (4.58" × 2.82" × 1.15")

Weight

125 g (0.28 lb)

Installation

Wall Mount

Certification

Certifications

TÜV and CE listed

Compliance Standard

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: 51761435098

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Lala
Lake Worth, US
★★★★★ 5
So far, loving this! I have super sensitive skin and it's causing no issues!
This serum is really nice and easy to apply! It’s on the thin side, so I like to tilt my head upwards and gently release a drop or 2 at a time onto my face. Rub it in from there. If you drop this into your hand to apply first, you’ll be wasting a lot of product, so don’t go that route. I do have some sun spots I’m looking to tackle, so hopefully this will help with those! I also live in a city with high levels of pollution, so I can use all the antioxidants I can get! I'm excited to see if this helps with some sun damage and spots that I've accumulated over the years.
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Reviewed in the United States on April 30, 2024
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nellieracer
New York, US
★★★★★ 5
Absorbs quickly
I like this ampoule. It has a nice gel-like viscosity and absorbs quickly into my skin and has not caused any irritation. I like that it has no smell. Since I have been using it, I have noticed a general lightening of the dark spots on my cheeks. I have noticed that my skin tone looks brighter since I have started using this. I will continue to use this ampoule in hopes of seeing even more improvement. Overall, I am very happy with this ampoule and think it does a good job of evening out my skin tone and lightening dark spots I have on my face making my skin look brighter, in general.
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Reviewed in the United States on July 17, 2024
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Verified Purchase
Payeng Lo
West Palm Beach, US
★★★★★ 1
Does nothing for my skin
I have been using this for a little over a month and this has done nothing for my skin. For the price, I'm disappointed, I expected to see at least some little results after 1 month but nothing for me. I will not purchase again.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 19, 2025
K
KatoBug
Lowell, US
★★★★★ 3
Its fine... but didnt really work for me.
No negative side effects, but I just didn't find it to lighten the areas I was hoping for. ** Hi a little about me and my reviews. I regularly review skin care products and have a base line for my reviewing process. Firstly I have very dry, sensitive and aging skin. I prefer oil based products, and I prefer something with a natural scent like lavender, rose, rosemary. I try to keep my reviews concise but I wanted to share my star ratings as I see them. 5 Stars - Would use every day. Great product, does great things! 4 Stars- Great Product but not for everyday use, 2-3 days per week or spa day special. 3 Stars- Not great, not awful, just ok. 2 Stars- Not good, but not injurious 1 Star- Terrible, burns, or unsafe product
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Reviewed in the United States on July 10, 2024
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EchoNaturx
Draper, US
★★★★★ 5
Finally a razor for women that's gentle where it matters and powerful where it counts.
I could tell right away that this razor was designed with women in mind. It petite enough to fit in curves, but not so small that you spend all day grooming. Bonus feature - unlike some razors you can charge it with or without the stand. For someone on the go, having a rechargeable razor that's compact for travel and uses the same cord as my phone is a HUGE win. Other things I liked: it has a nice touch to it and it balances well in my hand. It's easy to hold and maneuver. You can use it both as a trimmer for quick shaping and for a close shave. A note on this: Any shaver will pull hairs if you use it incorrectly. Start with the straight trimmer for longer hairs. Watch your angle and adjust as needed. Do an internet search for videos to help. Use the guards if your hair is especially long. Only switch to the round shaver with really short hair or stubble. I had zero issues with pulled hairs. It truly is painless as advertised. The shave quality was close and baby smooth with zero skin irritation. It functions exactly as advertised and the battery life was excellent. Truth be told, it's winter so it's been a while since I last shaved my legs. I needed the extended time. Having both a trimmer and razor in one tool is fantastic value and time saver. Clean up was simple. I'm happy to finally have a women's razor that works as it should.
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Reviewed in the United States on January 31, 2026

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