STEP 1: Create your free SciStarter account on SciStarter.org. SciStarter is an online citizen science hub connecting millions of people from all walks of life to thousands of opportunities to participate in citizen science. Watch the above video for an overview of the project.

STEP 2: Check your Aranet4 unit. The battery indicator level is shown on the front of the unit right below the large number display. Replace batteries with two fresh AA batteries if the indicator is low. Note: Removing the batteries from the device will delete any data history from the device memory.

There is no need to calibrate or alter the configuration switches on the device. Typical readings outside in the open air should be between 420 and 450 ppm. If you notice outdoor readings beyond this range, please note them in your data field journal.

Keep in Mind!
The Aranet4 monitor is not impact resistant—please handle with care!
Do not leave the monitor in direct sunlight.
Do not use the monitor in environments with high humidity (above 85%).

STEP 3: Download and install the Aranet4 app onto your smartphone. The Aranet4 app is available on Google Play or the Apple App Store.

DOWNLOAD APP - IOS

DOWNLOAD APP - ANDROID

STEP 4: Pair the device with your smartphone:

Launch the app

Allow the app to use Bluetooth (and make sure your smartphone Bluetooth is on)

Press the “+ PAIR NEW DEVICE” button

Select the Aranet4 device from the list by pressing “+ PAIR”

Accept the pairing procedure

Enter the six-digit code that appears on the Aranet4 device

Once your device and smartphone are paired, you can go into the Aranet4 app to view the readings on the sensor remotely.

To view the data history collected, as well as the lowest and highest readings of the past 24 hours, click on the graph icon (located between the battery indicator and the Settings gear icon). From the data screen, you can also send the data file to yourself via messaging or email. Just click on the Share icon in the top right corner.