The one advantage of dual beam NDIR is that your monitor should be accurate without user input while it’s new. The device is portable, simple to install, easy to operate and lets you know when the monitored air quality has become unhealthy.

The Aranet4 sensors complement our current range of COVID-19 and PPE Equipment, including Disposable Masks, SARS-CoV-2 Antigen Rapid Test Kits and Medical Eye Protection Goggles. Let’s look at these same three monitors when they are monitoring a concentration of around 2000 ppm.

It continually records this information to its integral memory and at any time you can download this information to your smart phone/tablet using the Aranet4 App and view a full weeks’ worth of data. A cookie in no way gives us access to your computer or any information about you, other than the data you choose to share with us. When comparing the devices side-by-side, the most significant difference is the massive screen on the SmartAir device. You can set the screen to show a single reading (these can be scrolled between), and that’s all that is displayed on the screen. While it has a small internal battery, its life is short, and you’ll be lucky to get eight hours from it.

That said, NDIR is far more common, and most carbon dioxide monitors rely on these tried and tested sensors. To stop thieves, the Aranet4 HOME has an anti-theft wall mount which is included Free of charge, a Duomo exclusive offer. Here, you can manually calibrate the device or even enable automatic calibration on an eight-day cycle. Since I don’t have a reference monitor to compare to, I decided to compare the SmartAir CO2 Monitor’s accuracy to two Aranet4 Home monitors. Depending on your preferences, you may also want to look for a carbon dioxide monitor with other features – such as a large screen or good portability.On the other hand, the IAM-T1 feels significantly less pocketable even though it’s only slightly larger.

This is a very impressive performance and is not what I expected when I first heard about this device and its pricing! While the device has Bluetooth and an accompanying phone app, similar to many other carbon dioxide monitors, it also supports WiFi and SmartAir’s web dashboard. If you are in a place with lots of plants and it is daytime, it can go lower than that due to the plants consuming CO2, so probably don’t go into a forest when calibrating. Still, all remain within 50 ppm of each other and show the same trend of increasing carbon dioxide concentration.With a networked solution of up to 100 Aranet4 devices in a single long-range wireless network, it incorporates centralized data monitoring for a complete data overview. Some higher-end devices fix this issue by allowing the user to view data on an app or export it in a spreadsheet.