SAF Aranet4 Home: Wireless Indoor Air Quality Monitor for Home, Office or School (CO2, Temperature, Humidity and More) Portable, Battery Powered, E-Ink Screen, App for Configuration & Data History

Product Information

Aranet showed CO2 in the range of 420-426ppm for three readings in a row. This is incredibly accurate, and while I’m not sure what the actual ambient concentration was then, it is very promising. This is exactly the concentration you would expect to see in an ambient environment. Recalibration: All Aranet4 CO 2 monitors are calibrated before being shipped out. But please be aware, they should be recalibrated roughly once per year. This is possible through the app. To do so, go to the settings menu and select CO 2 calibration. Users can adjust measurement intervals, buzzer sounds, Bluetooth range, CO2 indication mode (what colours indicate what concentration), and CO2 calibration in the app settings. Users can also toggle between temperature units, pressure units, and date formats to keep the device easily usable for everyone. Aranet4 uses non-dispersive infrared (NDIR) sensor for measuring the CO₂ level. The device has a small gas chamber with infrared light source in which CO₂ absorbs the light. An optical filter in front of a detector then filters all of the light except the wavelength that the CO₂ molecules can absorb so a precise measurement of the CO₂ level can be made.

The app works in portrait mode but turning it to landscape gives a wider view where you can pinch to zoom-in on your data. Integration This blog is a handshake with the Aranet4 HOME: an instrument specialized in measuring key indicators of overall air quality. There’s an audible warning buzzer that can be enable or disable as an alarm for dangerous levels. It’s recommended that you calibrate the device once per year and this can be done automatically or manually.

Aranet4 HOME is an innovative battery-powered stand-alone bluetooth sensor.

Power-efficient e-ink display ensures super long battery life for this wireless device (up to 5 years) This process will take about half an hour, allowing the Aranet4 Home to take a new baseline reading. From now on, the device will use that calibrated concentration as its baseline, and all future readings will be taken, assuming that 420 ppm reading is accurate. It is worth mentioning that once you calibrate the device, you can never return it to factory calibration.

Some drift can be found over time in the temperature, humidity, and atmospheric pressure sensors. However, the drift is generally minimal and shouldn’t impact your device usage – even after five or more years. My biggest wish for the device is to see more protection added. Currently, it’s not water resistant, and it doesn’t have any drop resistance. While I understand air must enter the device, I’m sure there is some way to make the device at least somewhat water-resistant. In addition, some extra drop protection would also be fantastic.

Customer reviews

The app reliably takes only 3 seconds to sync sensor data with the device. Zero connection issues, no faffing about with toggling Bluetooth on/off, it just works, every time. The button is also visible on the App screenshots that you have posted above to show the graphs of CO2 from App.

Als u op zoek bent naar een compacte betrouwbare CO2 meter die op batterijen werkt én waarbij historische metingen kunnen worden teruggekeken op een smartphone of tablet, dan hoeft u niet meer verder te zoeken! De Aranet4 is zéér gebruiksvriendelijk en 'monkey-proof', omdat hij géén knoppen heeft en dus niet ontregeld kan worden! Monitoring carbon dioxide levels and acting on the information is incredibly beneficial. Like indoor air pollution monitors, which monitor the particulate matter and VOCs, I recommend a portable device such as the Aranet4 Home for anyone wanting to improve the quality of the air they breathe. It really can change how you live and especially how you feel. The Aranet4 Home is considered one of the best consumer-level carbon dioxide monitors. Due to this, the device has a premium price compared to many competing products. When writing, the Aranet4 Home is listed as 249 USD but is on sale for slightly under 200 USD. While this is an excellent price drop, it is still the most expensive consumer-grade carbon dioxide monitor. Use multiple Aranet4 PRO devices in different locations and connect them to the base station and Aranet Cloud for centralized monitoring

It’s worth pointing out that the unit warns that inserting the batteries incorrectly will damage it badly enough to mean it needs to be returned to the manufacturer for repair. The FAQ also warns that a drop could permanently damage the sensor too, so be careful. App Als u op zoek bent naar eenbetrouwbare mobieleCO2 meter, oftewel een CO2 meter die op batterijen werkt en u overal kunt plaatsen en mee naar toe kan nemen óf een CO2 meter waarbij historische metingen kunnen worden teruggekeken opeen mobiele telefoon/tablet en geëxporteerd kunnen wordennaar Excel,dan hoeft u niet meer verder te zoeken!