SKU: 39476741476

HKM-945811 Air Quality Tester with LCD - CO2, TVOC, HCHO Meter, Thermometer, and Humidity Monitor with Lithium Battery

Sale price$118.79 Regular price$131.99
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Ships within 48 hours · Estimated delivery Sep 23 - Sep 28

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Description

HKM-945811 Air Quality Tester with LCD - CO2, TVOC, HCHO Meter, Thermometer, and Humidity Monitor with Lithium BatteryIntroducing the HKM 945811 Air Quality Tester, a sophisticated device designed for meticulous monitoring of indoor air quality. This all in one meter measures crucial environmental factors, including CO2, TVOC, and HCHO levels, while also monitoring temperature and humidity. With the HKM 945811, you can take charge of your living or working environment, ensuring it remains safe and healthy. Equipped with high accuracy sensors, this device delivers

Introducing the HKM-945811 Air Quality Tester, a sophisticated device designed for meticulous monitoring of indoor air quality. This all-in-one meter measures crucial environmental factors, including CO2, TVOC, and HCHO levels, while also monitoring temperature and humidity. With the HKM-945811, you can take charge of your living or working environment, ensuring it remains safe and healthy.

Equipped with high-accuracy sensors, this device delivers stable performance with exceptional anti-jamming ability. Its low power consumption means you can rely on its long-lasting capabilities. The large LCD display simplifies your monitoring process by providing easy access to essential metrics at a glance—be it CO2 concentrations, TVOC readings, HCHO levels, temperature, or humidity.

The intuitive interface of the HKM-945811 includes a switchable alarm sound for added convenience. With its environmental quality judgment function, the tester communicates air quality levels based on real-time data, helping you make informed decisions about your surroundings. The built-in 1800mAh lithium battery is easily rechargeable via a USB cable, and a battery status indicator ensures you’re never caught off guard.

Specific features of the HKM-945811 include:
- CO2 measuring range: 350ppm to 2000ppm
- TVOC measuring range: 0.000 mg/m³ to 2.000 mg/m³
- HCHO measuring range: 0.000 mg/m³ to 1.000 mg/m³
- Temperature measuring range: 0°C to 90.0°C (32°F to 194°F) with accuracy of ±1°C

Weighing just 222g and featuring compact dimensions of 176mm x 73mm x 29mm, this air quality tester is portable and user-friendly, making it ideal for home, office, or any indoor setting. Stay informed and proactive about your air quality with the HKM-945811 Air Quality Tester, a practical solution for creating a healthier and safer environment.

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: 39476741476

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4.5 ★★★★★
Based on 19 reviews
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Verified Purchase
Amazon Customer
Phoenix, US
★★★★★ 5
amazing.
Item Package Quantity: 4, Size: Queen
WOW. I was really skeptical, but the other reviews are spot on: these are amazing firm pillows. I really hope they don't lose their firmness and become lumpy like other pillows tend to do. Excellent pillows for the price!!
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Reviewed in the United States on June 7, 2026
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Verified Purchase
Moranda
Lexington, US
★★★★★ 5
Great quality!! Great price
Item Package Quantity: 2, Size: Queen
Bought these for my mom and omg i like them better than the ones I got on Amazon theyre super comfy and they bounce back up they dont flatten and im definitely buying some next for me definitely worth the place great price and the make seems real good quality
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Reviewed in the United States on June 3, 2026
M
Verified Purchase
Mack Mackenzie
Dallas, US
★★★★★ 4
These are very thick pillows.
Item Package Quantity: 2, Size: Queen
Exactly as advertised. They are very firm and very thick. They're too thick for me to be able to use as bed pillows. However, they seem to work pretty well as cushions in my papasan chair on top of its normal cushion also work very well as decorative pillows. I'm still giving them four stars because they're exactly as advertised and they seem well made. My only complaint is that they're just too thick. And that's definitely not the fault of the pillows or the pillow maker.
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Reviewed in the United States on May 12, 2026
W
Verified Purchase
W.
Los Angeles, US
★★★★★ 5
Comfortable, firm, great for positional sleep therapy
Color: Cool Grey, Size: 24x24x12 inch
This is just what I needed to breathe better in my sleep, my doctor recommended a pillow like this for sleep apnea symptoms. I have an upcoming surgery too, so i'm glad I was able to test it out a week prior and see how it can help me prop up in bed. Feeling better about my upcoming recovery knowing i'll have this great pillow to support me!
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Reviewed in the United States on April 4, 2026
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Verified Purchase
Kristin
Pawtucket, US
★★★★★ 5
Literally perfect and exactly what I needed!
Color: Cool Grey, Size: 24x24x12 inch
I can't recommend this enough! It was exactly what i was looking for! I have an annoying habit of researching everything for months before I purchase something that will get used this often. I finally decided on this one and I was very pleasantly surprised. I needed a wedge pillow to put at my back while sitting in bed. Mostly for when I'm working on my laptop. This one was the perfect height and perfect fit for me.I'm a female that is 5'4 and weigh about 117pds. I wanted something firm enough to support my back, and this most certainly does! It had a very pleasant appearance with the light gray sides. It has a removable cover I can take off and wash when needed. It's portable enough to move from room to room, also works great on my couch and it has amazing versatility. It can also be used as a pillow for someone that might need to sleep at a slight incline. It also works if you need to prop your legs up. It came vacuum packed. Once opened It said to let is sit for at least 24-48 hrs to give it time to properly inflate. For me, It plumped right up immediately! Again, from someone that does her research, if your looking for something like this at a reasonable price, this is it!
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Reviewed in the United States on May 10, 2026

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