I took the unit outside in order calibrate it. It then read 408PPM, which is exactly what it should be, so I'm assuming the CO2 sensor is accurate.
But the relative humidity is a different story. I have three hygrometers in my mushroom grow tent. They all read within 3% of each other at 87-90% humidity. This unit consistently reads 75%, or roughly 15% low. While there is a way to calibrate the CO2 sensor, I don't see a way to calibrate the hygrometer. I'm disappointed in the inaccuracy.
But the relative humidity is a different story. I have three hygrometers in my mushroom grow tent. They all read within 3% of each other at 87-90% humidity. This unit consistently reads 75%, or roughly 15% low. While there is a way to calibrate the CO2 sensor, I don't see a way to calibrate the hygrometer. I'm disappointed in the inaccuracy.
21/06/2023
It works and seems accurate but there are 2 issues you need to know: you get maybe 20-24 hours out of a full charge and that also takes several (3.5+)hours to charge back up. Kind of annoying to keep a small device on a cord but if you want constant 24 hour a day monitoring that’s what you’ll have to do.
Second, also minorly annoying is temp setting. The default is Celsius and there is the ability to change that to Fahrenheit but it won’t stay there- it reverts to Celsius. At first i though it was a memory loss thing due to the previously mentioned short battery. This wasn’t the case- it reverts to Celsius after being idle a few hours.
The display is large and easy to read. It does connect very easily and has Wi-Fi so remote monitoring is just a glance at the app. Out of the box set up is quick and easy.
Second, also minorly annoying is temp setting. The default is Celsius and there is the ability to change that to Fahrenheit but it won’t stay there- it reverts to Celsius. At first i though it was a memory loss thing due to the previously mentioned short battery. This wasn’t the case- it reverts to Celsius after being idle a few hours.
The display is large and easy to read. It does connect very easily and has Wi-Fi so remote monitoring is just a glance at the app. Out of the box set up is quick and easy.
05/06/2023
Seems like a good product out of the box. Delivery was quick and instructions for set up are easy to follow. Will need long term use to get full idea of its capabilities
It comes with the usb charging cord, but not a cube to plug into the wall.
It comes with the usb charging cord, but not a cube to plug into the wall.
14/04/2023
I like the ease of set up. I also like the display as it is easy to read from across the room. We have it set up near our back door leading to the garage. I will definitely feel safer with the alarm set to warn us if levels get to high. I feel my family is safer with this device in our home
13/04/2023
It looks very nice and is small and sleek. It’s pretty awesome to see all the stats in one place. Good buy.
10/04/2023
24/03/2023
Verdict: Buy
This is a useful addition in the house. Helps to monitor the indoor conditions.
Would recommend for families with little kids to keep a check on the room conditions.
This is a useful addition in the house. Helps to monitor the indoor conditions.
Would recommend for families with little kids to keep a check on the room conditions.
11/03/2023
Seems accurate and looks sleek! The monitor is easy to understand and read. The presentation is also nice, and app is easy to use.
06/03/2023
You have to read the instructions, and even then, it's not obvious how to get it to work. Press and hold buttons while getting zero feedback from the device, that kind of thing.
I'll update my rating if and when I am able to use it enough to have an opinion. Till then, I'm just posting this to overwrite my hasty first impression.
I'll update my rating if and when I am able to use it enough to have an opinion. Till then, I'm just posting this to overwrite my hasty first impression.
06/03/2023
Bought this CO2 sensor for my house and this works great. The screen is bright and very easy to understand all the readings. When the CO2 level goes up, I would turn on my air purifier and I can see the reading goes down. This is really good if you want to monitor the air quality inside your house. It also has temperature and humidity sensor. The wifi feature is really nice addon.
20/02/2023