CO2 Monitor Indoor air Quality Monitor Portable CO2 Meter, CO2, Temperature, Humidity Home, Office or School

This monitor is doing exactly what I was hoping it would do. Easy to set up and easy to read. This information provides the peace of mind that I needed after a family member had accidentally been running a vehicle in an enclosed garage.

Had it for a year now, works fine, seems like we have to charge it weekly

Battery lasts a very very long time ever since I've bought it months ago it hasn't died ever. I used this to figure out my room had extremely bad ventilation and why I was always waking up with major headaches. One night I woke up with a PPM of 3.3k. as for how I solve this issue. I bought a ERV to pair with my AC. But yeah this thing is great

This meter is pretty good for what it does. It gives a general average to the CO2 in the room which is somewhat more stable. It doesn't show spikes or acute changes so it's less startling than other meters I have... But also might be less effective for some people.

Most monitors have a backlight that can't be turned off. If you prefer to sleep in a darkened room, this is a good choice, with its basic unlighted LCD display. Also, without the backlight, the specs say its internal battery will keep it running for a month or two rather than the day or two which is typical for lighted units; this only matters if you need it to run for an extended period without being plugged in. It seems reasonably accurate; probably not a precision unit, but good enough to get a sense of your living environment.

No backlight, can't see the numbers during evening. Wanted me to spend $15 for Bluetooth to use meter more completely.

The S1 has no Bluetooth capabilities but does give you the readings.

Bought this because I wanted test the CO2 levels in my home. I have found it very interesting. I have tested it all over our house but mostly leave it in our primary bedroom. After my husband and I have slept in the room all night, the CO2 levels are usually in the 1100-1200ppm range by morning. If I open the patio doors in our bedroom, the levels drop by half within minutes! I had already been in the habit of opening our patio doors in our bedroom for fresh air, usually while I make our bed, on a regular basis. My husband sometimes gives me a hard time about opening doors or windows (we don't have any screens) because he doesn't want flies to come in. Now, I have scientific proof that what I have been doing is beneficial for our health lol. Our bodies need fresh air! Can't imagine what this would read if I leave the doors and windows closed all the time like he likes! The readability is clear, size is easy to read, instructions included (but not needed for me - it's self-explanatory), a fair value for your money. Screen is bright enough for not being backlit. That's a preference as some people don't want a backlit screen while trying to sleep. All in all, I recommend!

I was sceptical at first, but wow! the battery last for ages and the item is super accurate. great value for money and super portable. the stand is magnetic so it can be folded up and taken home in a small bag if you don't want the cleaner to run off with it :)

good item

Preciso, reattivo e batteria durevole

Works well. Portable and reliable CO2 measurement. Showed I needed more fresh air in the bedroom at night since otherwise 2100ppm CO2 with door and window closed, and also working in home office, I need to air the room for 10 minutes every couple of hours when the reading reaches 1300ppm. It has an internal rechargeable battery, USB-C rechargeable. I have been using it for 2 weeks now and have not charged it all yet! It takes approx. 1 minute to react to increased CO2 and 5 minutes to react to a reduced level. I turned off the alarm feature as that would be irritating at night. When outside it reads 450ppm, breathing directly on it gives 5000ppm.

It is a genuine product. It actually uses Swiss sensors which actually measures the CO2 level unlike cheaper versions, which only pretty predict CO2 level based on other chemicals. However, the major drawback of this product is it takes around 4 to 5 minutes for this device to get the accurate CO2 level data. It is a very slow device.