Mostly I wanted a CO2 monitor to make sure indoor CO2 levels don't get too high in my house. It seems to be working well. I first tested it by breathing on it for a few minutes, and the readings went above 3000ppm (it's max), and then returned to ~750 when I stopped. After being in my bedroom with nobody in their, it went down to ~550. After I was in there for a while, it was around 750. My fresh air vent turned on and it dropped to ~650. I exercised in the room, and it went up to 1,200. I have no way to verify that it's perfectly accurate, but it seems to be doing what I need it to do.
Mostly I just want to be aware when CO2 levels get too high. It has 2 alarm levels. I set the first to 800 and the second to 1200. At 800 a yellow light comes on, and I'm just aware that it's getting high. At 1200 a red light comes on, and that lets me know I need to take action (only happens when I'm exercising in the room, and cracking a window open brings it back to yellow). The alarms also trigger an annoying beeping sound that can't be turned off. But, if you take off the back panel, there's a plastic cylinder in the middle of the circuit board that houses the speaker. I used pliers to pull the speaker off, and now the unit works fine with no annoying beeps.
This saved me money by letting me adjust my fresh air intake, which brings in outside air to keep the inside air from getting stale. But, it uses a lot of electricity to run, and it brings in hot summer and cold winter air that need to be cooled/heated, using even more electricity. I've lowered the runtime of my fresh air intake from 50 minutes per hour down to 15 minutes per hour, which should save me a ton of electricity costs, and still is enough to keep my CO2 below 1,000ppm (except certain specific circumstances, like exercising, when I just crack open a window).
The data tracking turned out to be pointless for me. It only tracks while your computer is turned on, and I don't leave my computer on all the time. Also, the meter only works when plugged into a power source, so any time I turned the computer off the meter would also turn off. Now I just leave it plugged into a wall.
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- Temtop CO2 Monitor Indoor air Quality Monitor Portable CO2 Meter, CO2, Temperature, Humidity Home, Office or SchoolEUR 7.16 shippingGet it as soon as Wednesday, May 6
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Product description
Create a Healthier Lifestyle with IAQ Monitoring
Breathe Cleaner Air Today
- Easy to Use, Plug and Play Capabilities
- Used across homes, classrooms, and office buildings; or commercial settings.
- Three different indicator lights (Red, Yellow & Green) to show the current Indoor Air Quality
- Audible Alarm to Indicate when Ventilation is Needed
Creating a Better Living Environment, Just Got Easier.
The CO2Mini monitor is a low cost, easy to use desktop indoor air quality monitor. It displays carbon dioxide and temperature. The CO2Mini can be used in offices, schools, meeting rooms, homes and other places where personal comfort and health is important.
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Customers say
Customers find the CO2 monitor reliable and accurate, with one noting it works well for indoor agriculture and another mentioning it measures both CO2 and temperature. The device receives positive feedback for its functionality, value for money, and CO2 monitoring capabilities. Customers disagree on the ease of use, with some finding it very easy to use while others note it's difficult to turn off. The size receives mixed reviews, with customers describing it as very small, and the adjustability is also mixed, with one customer noting the alarm settings are easily adjustable while another finds it difficult to change alert levels.
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56 customers mention reliability, 42 positive, 14 negative
excellent monitor ,great delivery, and works great...self adjusts every few days..overall great for the cost...Read more
...Easy to use and reliable. What a sweet deal....and it cost half as much as the others.Read more
...And if it thinks the CO2 is too high, it will not shut up. beep beep beep beep...Read more
Works well, but it is hard to change alert levels. I still like it, I can see now how CO2 level increases when somebody cooking in the kitchen.Read more
42 customers mention accuracy, 32 positive, 10 negative
Works like a charm for indoor agriculture, appears to be sensitive and accurate. No need to pay more.Read more
...This model (ZGm053UKA) is wonderful (price, accuracy, design, size, easy to use, etc) except two things... 1....Read more
Very accurate, checked outdoor Co2 ppm 520 , grow tent 1500-1800 ppm with NO Co2 system....Read more
Not accurate at all!Read more
32 customers mention value for money, 25 positive, 7 negative
Good value, simple way to verify indoor air is freshRead more
It works fine. Good price/quality deal.Read more
...At any rate, folks looking for a reasonably priced indoor air quality monitor should find this meter just what the doctor ordered...Read more
It’s cheap. The display is small. The biggest disadvantage of this unit is that you cannot silence it....Read more
25 customers mention functionality, 22 positive, 3 negative
excellent monitor ,great delivery, and works great...self adjusts every few days..overall great for the cost...Read more
...I would give five stars because for the money it's a great device I wish I could turn all the lights off because it does have lights that flash in...Read more
Nice sensor, but I wish I could turn the warning beep off.Read more
...The software also makes setup easier. Good product that is doing what I want it to do.Read more
13 customers mention co2 monitoring, 10 positive, 3 negative
...for the price it,s a good co2 meter (and temp.), i'll do an update when i receive the new one.Read more
Love this thing. Hooked it to spare laptop and very easy to monitor. I there was a little more robust software, but adequate.Read more
This device opened my eyes to the CO2 levels in some of my rooms. (No problem for people, but will cause low pH in aquaria.)...Read more
...It did not register to gas leak but did register high CO2 where there was nothing wrong. The technician showed us how his meter registers vs our one.Read more
14 customers mention adjustability, 9 positive, 5 negative
...PROS: * Self-calibrating design. * Toggles LCD readings between CO2 level and room temperature. *...Read more
Works well, but it is hard to change alert levels. I still like it, I can see now how CO2 level increases when somebody cooking in the kitchen.Read more
excellent monitor ,great delivery, and works great...self adjusts every few days..overall great for the cost...Read more
...Shows temp, then flashes to PPM amount. The yellow alarm can be adjusted, but comes set, at around 700PPM....Read more
14 customers mention size, 7 positive, 7 negative
Small and portable except that we can't select degree in the temperature by default. The position of the usb port for the power is also not ideal.Read more
It’s cheap. The display is small. The biggest disadvantage of this unit is that you cannot silence it....Read more
I received this mini CO2 monitor fast and in good condition. It is very small and looks cute....Read more
...it reads and is true without caibration issues but the screen is kind of small , a fair buy but I am not overly impressed for price.Read more
13 customers mention ease of use, 9 positive, 4 negative
...The two tiered alarm setup is very basic and easy to use and according to ChatGPT my CO2 levels can exceed OSHA standards for health and safety on...Read more
Device is very easy to use and reasonably priced. It is eyeopening to see the increase in CO2 in a room with no or limited fresh air ventilation....Read more
...It's winter and wenting is not easy but we know the difference now and work on keeping air fresh. Excited to bring it to the office and schoolRead more
...A logging function is available, but only if you leave it continuously plugged into a computer....Read more
Perfect for grow room.
I bought this to monitor the CO2 in my hydroponic grow room in my basement. I just plugged it in and after the 5 second warm up time I had my reading. Now I actually know the condition of the air in my grow room. It also reads the temperature. The only adjustment that I made was to set the alarm level to the maximum limit. Which is 2900 PPM. Otherwise it sits and beeps telling you that you have bad air quality. I actually went to buy a second one and found them sold out. It says that they are unavailable now. I was going to get the same brand just a different model. It just sucks that the other models that are in stock are more money.
Top reviews from the United States
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- Reviewed in the United States on September 2, 2019
- Reviewed in the United States on April 22, 2019
Top reviews from other countries
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- Danil ErkoReviewed in Canada on November 11, 2019
simple, functional and not overpriced
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John DekkerReviewed in Italy on March 10, 2020
Molto elegante, funzona benissimo !!
