Go Direct Weather (GDX-WTHR)
Specifications and User Guide


Primary Test:

  1. Launch Graphical Analysis or Graphical Analysis Pro. Connect Go Direct Weather to your Chromebook, computer, or mobile device.
  2. Blow onto the sensor to make sure the readings change and that the impeller spins freely.


Some channels are dependent on location so do require a calibration to correct the readings. The rest of the channels are factory calibrated and the user can not calibrate them.

Wind Direction

This channel has been factory calibrated but users might find readings to be incorrect due to interference from nearby metal objects. If that is the case, then the channel should be calibrated to offset for this interference. To do a calibration

  1. Place the Go Direct Weather in the Weather Vane.
  2. Start the software, connect your probe, and turn on the Wind Direction channel, if necessary.
  3. Click or tap the wind direction meter, choose Calibrate.
  4. Click or tap Calibrate Now and slowly spin the sensor 10 times or when the calibration process ends automatically.  
  5. Click or tap Done.

Barometric Pressure

To accurately report barometric pressure, this channel needs to know what your current elevation is. This only needs to be done once if you are not changing elevations. Each time you move to a different elevation, this channel will need to be adjusted with a calibration. To enter your current elevation

  1. Start the software, connect your probe, and turn on the Barometric Pressure channel, if necessary.
  2. Click or tap the barometric pressure meter, choose Calibrate
  3. Enter your elevation in meters. Click or tap Keep.
  4. Click or tap Apply.

Battery Troubleshooting

If the sensor can be turned on when connected by USB but not when disconnected from USB, it is likely that the battery just needs to be charged. In this case, charge the sensor for several hours and try again. If, however, the sensor won’t turn on regardless of whether the USB cable is connected or not, and you are confident that the USB cable is good by having tested it on another sensor, then the battery has likely reached its end of life and can no longer hold a charge. In this state, the sensor cannot be used even if connected by USB, so the battery will need to be replaced. The rechargeable battery in this sensor is covered by a one year warranty but should last two to five years in typical use. Note that if the battery is less than one year old and the sensor cannot be turned on even when connected by a working USB cable, another possibility is that the USB port is bad. In this case, contact Vernier technical support for assistance. 

Related TILs

How do I set the magnetic declination for my Go Direct Weather?

Why doesn’t my Barometer show the same pressure as the weather report?

What size mount do I need for Go Direct Weather?