The combination of NDIR CO2 monitoring and WiFi is useful. It has been a practical addition to our home office.

I like the real-time readings and rechargeable design. Initial app pairing required me to follow the instructions carefully.

CO2, temperature, and humidity readings are clear and the app is convenient. The buttons could be a little more intuitive.

The readings are easy to see and the WiFi feature is helpful. I would like a few more display customization options.

The monitor itself is easy to use and the display is clear. Connecting the WiFi took me a little longer than expected, but it worked after setup.

After using it for a while, checking indoor CO2 has become part of my normal routine, especially in closed rooms.

The display layout is clean. I can quickly see the CO2 level from a short distance.

It sits neatly on the shelf and lets me monitor CO2 along with temperature and humidity in one place.

I specifically wanted a CO2 monitor with WiFi, and this one gives me both a local display and app access.

I like that I can unplug it and move it temporarily without immediately losing the display.

It focuses on the readings I care about and presents them clearly without making the device complicated.

We use it in a room where people come and go throughout the day. The CO2 changes are easy to follow.

The monitor feels compact without making the screen too small. It fits well on a shelf or workstation.

Instead of guessing when a room feels stuffy, I can check the CO2 reading and decide when to air it out.

Compact enough for a nightstand and easy to read in the morning. I like checking the overnight CO2 level.

The CO2 sensor, temperature, humidity, alarm, rechargeable battery, and WiFi cover everything I was looking for.

The screen is already useful, but the Tuya Smart app makes it easier to check the monitor from another room.

I spend many hours in one room, so being able to watch the CO2 level during the day is helpful.

A quick look at the screen tells me whether the room conditions have changed. Very simple to use.

USB-C charging is convenient since I already use the same type of cable for several other devices.

I bought it for CO2, but the temperature and humidity readings turned out to be useful as well.

The large CO2 number is the first thing you see, which is exactly what I wanted from this monitor.

I use this in a room that stays closed much of the day. It is useful for seeing how quickly CO2 can build up.

The size is just right for a desk or shelf. It is easy to glance at while working.

I like having an audible warning in addition to the visual display. It makes the monitor easier to notice.

The device is easy to operate and the important information is shown clearly on the screen.

The display gives a quick picture of the room conditions without needing to open the app every time.

I wanted the WiFi version mainly so I could view readings through the app. That feature has been useful.

The real-time CO2 display is helpful, especially when several people are in the room for a long time.

I have used it in the bedroom, office, and living room. The size and rechargeable battery make that easy.

CO2, temperature, humidity, WiFi, and an audible alarm in one compact monitor is a practical combination.

We use it in a family room where several people spend time. It makes indoor air conditions much easier to notice.

The readings change when the room gets crowded or when I open the window, which is exactly what I wanted to monitor.