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SDR
Reviewed in the United Arab Emirates on February 20, 2025
Surprisingly accurate. I have an industrial monitoring system installed and bought this for outside of my grow area and to see how accurate these better priced readers are. The Non-Dispersive Infrared sensors ensure this little machine can read accurate levels. This is all you need for relatively accurate readings. It is tracking within 40 PPM of my more comprehensive sensor which really surprised me.
Serena Abraham
Reviewed in the United States on January 20, 2025
I have come to trust Unni Technology products. With a new house, I wanted to monitor the indoor air quality. This smart looking CO2 monitor does just that. It refreshes every 6 seconds, displays CO2 level, Indoor Temp and humidity.
janet
Reviewed in the United States on January 19, 2025
The product seems to work very well. The USB plug in is great. Can hang on the wall or sit on counter. It really shows how a gas stove can increase co2 pretty dramatically. We are more aware and are ventilating the kitchen better now while we cook. Overall. Good product.
Mike
Reviewed in the United States on January 15, 2025
Here's what I like about the unni CO2 Sensor (UN0601).1. Easy to set up right out of the box, it only takes a minute or two.2. It seems to be very sensitive, do not put it to close where you could breathe on it because it picks up your breath and causes the sensor to read high.3. It displays real time temperature, humidity and of course CO2 levels.4. The monitors volume can be adjusted, it has 3 volume levels so depending on where you place it you can hear an alert in your home. It also has an adjustable back light for easy reading with three settings.5. This would work great I think in an RV when running the generator to alert you of any issues.6. It also has a battery back-up, takes 3 AAA batteries.7. It allows you to improve your home ventilation if readings are too high by possibly opening a window or changing your ventilation if needed.8. It is easy to view from a distance.9. in the short time I've had this it gives me the peace of mind that if there was an issue I would be alerted.What I would change:1. It would help if it came with the plug adaptor as noted in the picture. Though I guess may people like me have an extra cell phone adaptor that could work.2. They could also let purchasers know the plug is not included, just the usb to usb C cord.Overall, I am very happy with my purchase!!
Mike - Wisconsin
Reviewed in the United States on January 14, 2025
We just purchased the Unni CO2 Monitor for our home and fell in love with it right out of the box! It’s a perfect size to sit unnoticed on our living room side table, but gives us comfort knowing it’s there. The display is clean, and colorful and very easy to read. Not only do you see current CO2 (carbon dioxide) levels, but the history over time. Bonus data displayed is indoor temperature and humidity! This cute little monitor will help us keep track of indoor air quality, which is very important in the winter as we keep the house more closed up and entertain more guests over the holidays. Poor air quality could lead to headaches, drowsiness and fatigue. We are very pleased with this purchase - it is a great value for money well spent!
The Bunny
Reviewed in the United States on December 26, 2024
The Unni carbon dioxide monitor is small and light and seems very accurate. The display is clear and easy to read and can be dimmed or turned off. It comes with a USB cord that plugs in to any charger. Batteries can be used for memory or temporary testing, but are not necessary for the unit to function.To test the accuracy, I placed it outdoors and it was reading 401 ppm, which is normal carbon dioxide level in outdoor air. Indoor it was reading 568 ppm and it was going up when there were more people in the room and with some candles lit. The level went down to 489 ppm in the same room overnight when there were no people or lit candles.The monitor also has a thermometer and humidity function. I tested it side-by-side with a UNNI thermometer and it displayed the same temperature and humidity digits as the other unit, with only a fraction difference. The temperature can be set to Fahrenheit or Celsius.The monitor has an alarm feature that can be set if the CO2 level becomes too high. I tested by blowing on it and it went up to over 1000 ppm and a window symbol was lit on the display, indicating it is time to ventilate the room.This carbon dioxide monitor appears to work great and can be used in places where people gather, such as in schools, churches or similar, but also in your home.
Edj
Reviewed in the United States on November 9, 2024
I love this CO2 /air quality monitor because it is portable so I can take it anywhere to check the air quality. The display is very easy to read and understand, nothing complicated to figure out. I also love that it runs on the battery or can be plugged in which allow the multi brightness display to stay on all the time, if I prefer. I have plans to purchase for my place of employment since I am the facility manager.Perfect for anyone wanting to monitor air quality!
sydney
Reviewed in the United States on November 14, 2024
I do like that this gives accurate CO2 measurements and also indoor temperature and humidity readings. My one complaint would be that it has to be plugged in by a USB. I myself would prefer it to be a plug in.
Mike K7FLA
Reviewed in the United States on November 10, 2024
My first impression is that it is a very nice CO₂ monitor, easy to setup and pretty straight forward to configure. This sensor monitors indoor CO₂ air quality.Comes packaged well including USB-A to USB-C cable, and manual. You can easily adjust temperature setting from °C to °F, plus, alarm settings. When you add batteries and plug in USB it takes 60 seconds to take an initial CO₂ reading, and after that it periodically updates. After testing it for a day I am very impressed. Very useful for high concentration of poor air quality and cooking indoors and it will indicate to open a window/door to refresh the area to get the levels lower. The screen is nice and clear and bright and has a few brightness level settings.By default, the screen goes off after a few seconds until you press one of the keys. The only CON that I can see is the USB power connector is on the right lower side instead of the back which makes it a little lopsided when wall mounting. Other than that, it's a great accurate CO₂ air sensor.
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