The Go Direct^® Air Quality Sensor (GDX-AIRQ) has many sensors included in it making it a more complicated sensor than others. To get the best use of the sensor and data there are some best practices that are recommended when using it.

1. Acclimation: Always allow the sensor to acclimate to the environment it will be collecting data in. This is especially important if the sensor was indoors and it going to be used in an outdoors setting. Time for acclimation can take any where from 5 to 30 minutes depending on the temperature and humidity difference between the two settings.
2. Zeroing: The nitrogen dioxide (NO₂), sulfur dioxide (SO₂), and ozone (O₃) should be zeroed in an environment as close to zero as possible prior to data collection. To zero, once the sensor is connected, those channels need to be selected, then you to need to wait for the warm-up LED to turn green. Click on the live readouts meter in the lower right corner and select Zero. Again wait for the warm-up LED to turn green. DO NOT disconnect your sensor from the device. If you disconnect your sensor, you will lose the zero and will need to repeat the process.
3. Placement: Air currents flow like water so sensor placement is important to think about when collecting data. Use the included Vernier Lanyard (V-LAN) and Sensor Bracket for Go Direct® (GDX-MOUNT) to hang the sensor or mount to a tripod. Do not place the Air Quality sensor where the intake (front bottom) or front is blocked. Blocking these areas can prevent air reaching the sensors and impact data measurements.