I recently changed out all the gas lines in my kegerator. I woke up the next day to an empty CO2 tank due to a leaky fitting. I found and fixed the leak and all has been well since. (So I thought) I bought this unit to monitor for future leaks so I could possibly catch them in time before I lose a whole tank of gas. I calibrated the unit and placed it in my kegerator. Within minutes, I realized that I had another leak that I didn’t know about! It took a little while but I found the leak. It was so small that it was draining off the CO2 so slowly that I didn’t realize. See pictures of before and after I fixed the leak. Thanks Inkbird for another fantastic product!

This little box packs in a ton of features in a small screen. It will quickly tell you humidity, temperature, air quality, and CO2 concentration. Easy to recharge via USB-C port. My main purpose for getting this is to keep it in a kegerator and help identify and small CO2 leaks

I did not know how badly I needed this information. Easy to use, easy to understand. Battery lasts all day. Big bright display is easy to see.

I used this in my brew room to monitor co2 levels. Amazing how much the values go up when the room is closed off! I am glad to have this so I can keep track of the times it gets very high.

Ordered this for my basement brewery to warn me about CO2 leaks. Temperature read 10F too high for the first few hours, perhaps due to heat generated while charging the battery? In any case, it seems accurate (+/- 1F) now. The CO2 sensor is quite sensitive and seems plenty accurate for my application. It is sensitive enough to detect the CO2 level rising if you stand near it for a couple of minutes and I was surprised how much higher (from ~460 ppm to 650ppm) the concentration rose while I was cooking dinner last night. To test the alarm function I rigged up a one gallon jug, some random tubing and gas connectors, and a syringe of C02. Adding 7-8 milliliters of C02 to the one gallon jug (initially at ~460ppm) bumped the CO2 concentration inside to ~2400ppm, which is well within the margin of error for this setup (one ml CO2 should raise the CO2 concentration of one gallon of air by ~260ppm).

Happy to add this to the other Inkbird products in my brewery.

Addendum:
I have had this now for several days in my (basement) brewery. After venting the CO2 in my pressurized conical fermenter, it was nice to be able to check that the CO2 level was still well within the safe level (~600ppm) and then returned to normal within a few hours. Very happy with the purchase.

Easy set up out of the box and fast charging. Great for use with brewing and kegging system. Readings were accurate with other testing.

This is a great little monitor. Tested it in two sites and was amazed to see the difference. It’s nice to see how much co2 is pumped in the air with a little fermentation, and we can read the screen from across the room.

It has been so nice to monitor our cO2 levels, especially during these winter months where we aren’t allowing as much fresh air in! Great purchase.

Really like this thing. I have it in my sons room so I can monitor temps and humidity. Easy to setup and calibrate. Just take it outside and hold the three buttons on top to calibrate. Unit came in with dead batteries so i had to charge it but battery life seems to be pretty good. Numbers large and easy to read

CO2 turns into Carbonic Acid (H2CO3) , which lowers your PH. This tool can help monitor your household CO2 Level, so you can know when to open a window temporarily or to know if you should be using calcium hydroxide media(CO2 scrubbing media) to help maintain a high PH.