INKBIRDPLUS PTH-9A Air Monitor, 6 in 1 Indoor Air Quality Meter, Detects 400-5000 PPM CO2, AQI, PM2.5, PM10, Temperature and Humidity

It works well and is very easily calibrated, display is clear and easy to understand. My only two gripes would be the date can't be changed to UK format (minor issue) and the battery only lasts 2days between charges so really needs to be mounted near a socket and plugged in.All in all it does what it says on the tin and is a nice size.

Random readings, battery lasts for 10 mins , gets confused with backlight on ) power off. Not happy with this for the price.

Hard to review really but give it a go , it does what it says it does monitors air quality! Kept it in kitchen where air quality can change drastically eg when cooking and alarm does sound and go off when air quality diminishes. Air temp and moisture readings spot on very easy to read and use only slight downside is battery life but don’t know whether 2 days is good or not compared to other units overall it’s a good clear unit and worth getting if u need to monitor air quality

I purchased one to check out the myth that we are all going to die if we have a log burner. I can confidently say that it IS just a myth as the air in our house in the same room as the log burner is perfectly safe, around 400 ppm CO2, the PM2. 5 & 10 both remain at 002. Remaining at these levels night and day.Not impressed with the battery life, just around 4 to 5 hours. Spends a lot of time on charge, recently had a power bank attached to it so it runs all day.Tried putting on bedside cabinet for overnight, suprised to see how the CO2 raises to over 800 by about 2am, started leaving bedroom door ajar at night now.Other than that its a good monitor.

The device is great, easily readable and pretty accurate! However, the battery is quite poor and lasts for less than 24hours....

I bought this to monitor indoor air quality mainly to see if there is any truth in the myth of plug-in air fresheners creating "unhealthy" air.It measures a lot more than I need it for but another reason for buying is that it can be mains powered whereas some others are battery only.Set up was easy and the unit is compact and neat.Unfortunately it does not measure tVOC and I also found the ambient temperature was consistently overestimated by 2-3 degrees. I also found the AQI was consistently at 2, which seems too good to be true for an indoor scenario (the range is from 1 to 500!)I returned this and purchased the QingPing model, which is excellent.

I have several products from Inkbird and I keep going back to them as they are well made and reliable. This air quality detector is no different. It comes well packaged and the display is bright and with a good size font to the information which makes it easy to read. It took me a while to figure out how to set it, but I slowed down and followed the instructions step by step and got everything set up in less than 3 minutes.The three buttons at the top make it easy to use once you get the hang of it and the readings appear to be very accurate.It does the job of several individual monitors you could get for tempterature, humidity, air quality etc., but here you get it all in one! I definitely think it is worth the price.

This is a great air quality detector. Its screen is easy to read with it being lit up. And I love that it has a c02 monitor on it too. Has an alarm tone that you can switch off or on to warn you of high readings. Definitely recommend this product.