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The CO2 Monitor by U UNNI is a high-precision indoor air quality detector featuring a Swiss-made photoacoustic sensor that measures carbon dioxide levels (400–5000 PPM with ±5% accuracy), temperature (14.2°F–122°F), and humidity (20%–95%). It offers 3 adjustable alarm volumes and backlight settings, USB power with battery backup, and real-time alerts to optimize ventilation and maintain a healthy indoor environment.





| ASIN | B0D8PGPRVL |
| Batteries Required? | No |
| Batteries included? | No |
| Best Sellers Rank | 447,805 in DIY & Tools ( See Top 100 in DIY & Tools ) 118 in CO2 Detectors |
| Colour | White |
| Customer Reviews | 4.5 4.5 out of 5 stars (284) |
| Date First Available | 14 Sept. 2024 |
| Included Components | 1*CO2 Monitor, 1*USB Cable, Manual |
| Item Weight | 141 g |
| Item model number | UN0601S |
| Manufacturer | U UNNI |
| Package Dimensions | 13.79 x 10.21 x 3.71 cm; 141 g |
| Part Number | UN0601S |
| Power Source | USB POWERED OPTION & BATTERY BACKUP |
| Style | Classic |
F**G
Simple and work great
S**R
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.
K**I
Ich habe das CO₂-Messgerät gekauft, um die Luftqualität in meinem Homeoffice Büro und Wohnzimmer besser im Blick zu behalten – und ich muss sagen: Ich bin wirklich positiv überrascht! Die Kombination aus CO₂-Messung, Temperatur- und Luftfeuchtigkeitsanzeige ist super praktisch. Auf diese Weise kann ich auch im Winter mein Raumklima überwachen und Schimmelbildung vorbeugen. Besonders gut gefällt mir das historische Diagramm, mit dem ich die Veränderungen im Laufe des Tages nachvollziehen kann. So sehe ich zum Beispiel genau, wann ich lüften sollte – was sich tatsächlich auf Konzentration und Wohlbefinden auswirkt. Die Messgenauigkeit ist überzeugend und lässt sich per Kalibrierung sogar noch feinjustieren. Auch das Alarm-System mit 5 Konzentrationsstufen ist hilfreich, wenn auch zum Glück bisher selten ausgelöst. Ich finde es super, dass man die Lautstärke des Alarms selbst einstellen kann – keine nervigen Schreckmomente, aber dennoch deutlich genug. Was mir ebenfalls gefällt: Das Gerät lässt sich sowohl per USB betreiben als auch mit Batterien puffern, falls der Strom mal weg ist oder man das smarte Gerät mit ins Wohnmobil nehmen möchte. Die drei Helligkeitsstufe für die Hintergrundbeleuchtung, welche nur über den USB-C Betrieb verfügbar sind, machen es angenehm im Alltag – nicht zu grell, aber gut ablesbar. Ein paar kleinere Kritikpunkte gibt’s aber auch: Die Batterien sind leider nicht im Lieferumfang enthalten, das wäre bei dem Preis wirklich wünschenswert gewesen. Außerdem funktioniert die dauerhafte Hintergrundbeleuchtung nur im USB-Betrieb – im Batteriebetrieb geht sie schnell aus. Und ja, das Design ist jetzt kein Blickfang – eher funktional und technisch. Unterm Strich aber ein sehr zuverlässiges, durchdachtes Gerät, das genau das tut, was es soll. Ich würde es jederzeit wieder kaufen und kann es jedem empfehlen, der die Luftqualität in Innenräumen ernst nimmt – sei es zu Hause, im Büro oder in der Schule.
T**Y
The Unni carbon dioxide monitor UN0601 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. EDIT: This is a review of Unni Air Quality Monitor UN0602. There is a USB power cable and adapter included in the box along with instructions. When you first plug it in, there is a few minutes of count down before the display starts to show any values. The calendar and clock is easy to set and there is an option for 12 hour or 24 hour format, and daylight savings time. The unit monitors CO2 in the air, expressed in parts per million (ppm). The outdoor air is typically around 400 ppm for normal clean air. CO2 values over 1000 is too high and ventilation is needed. I tested the device side by side with an older same brand CO2 monitor UN0601 and found that the values were close, but not in agreement until after one week of testing. There was a 60-100 ppm difference in the values, sometimes the old unit was lower and the new unit higher, and sometimes it was the other way around. I tested both of them outdoors and noted the value was close to 400 ppm for each. The CO2 reading can be calibrated if it seems off. I did not calibrate it, since the outdoor reading seemed accurate. After a week the old and the new monitor were displaying the same CO2 values. The CO2 monitor is using a photo acoustic sensor. The unit also monitors the total Volatile Organic Compounds (TVOC) and is displayed with five different color indicators, green being the lowest and purple the highest level. The monitor was mostly green during testing, but would quickly go to purple within an hour when cooking. Just boiling a pot of pasta on an electric stove, caused the monitor to show a purple indicator even if it was in an other room. I am more interested in VOCs from paint, flooring, furniture etc. in the home, so this can be a little misleading. The particulate matter (PM) measures pollutants smaller than 1 microns (PM1) or fine, measured in micrograms per cubic meter, smaller than 2.5 microns (PM2.5), and smaller than 10 microns (PM10), or coarse. These smaller particles are invisible, like soot, viruses, smoke etc. and can cause asthma and other health issues. Values below 75 are generally considered safe. All three PM values were showing the same numbers during testing, from 0-5. The values seemed to go up at the same time when the TVOC value was going up. Both TVOC concentration value and the PM values are measured with laser detection. Not sure how accurate they are. The ambient temperature and humidity is also measured and displayed. These values seem accurate, since I compared them to several other devices. The Unni air quality monitor also has alert functions that can be set for CO2 and PM levels. The alerts can be turned on/off. The backlight on the display has two brightness levels and can be turned off by touching the upper part. This monitor can be useful after home renovations or when moving into new places with unknown materials. It can also be useful if living in areas with suspected high air pollution.
P**W
Es ist ein gut verarbeitetes Gerät mit einer attraktiven Anzeige. Es reagiert zügig und aus meiner Sicht präzise auf Veränderungen. Ich betreibe es, wie empfohlen, mit USB-Kabel am Steckernetzteil und nutze die Batterien nur als Backup. Die Anzeige der Historie hatte ich anfangs als schöne, aber unnötige Zutat angesehen, doch nach ein paar Tagen Benutzung möchte ich diese interessante Information nicht mehr missen.
Trustpilot
1 month ago
2 months ago