Download the Wind & Weather Meter app.
Enable Bluetooth on your device. You do not need to pair BLE devices with your phone - they will automatically connect.
1. Start the app and press the button on your WEATHERmeter to power it on. The LED will flash slowly until it pairs with your device. A Start button will appear when the meter is ready to take a reading and stream observations to your device.
2. Hold the WEATHERmeter into the wind with the logo facing you.
3. Tap Stop to manually end the sampling period.
The LED patterns on the meter and the app screen icons together indicate five different states outlined in the table below:
To shut down the WEATHERmeter hold the button until you see the LED flash quickly.
Older WEATHERmeters have a built-in compass (magnetometer) but newer devices may not have their own internal magnetometer.
Does your compass seem off? Please see these notes on calibration.
Even with calibration, the compass direction from the meter will not be as accurate as most smart phones. Smart phones have other sensors to help determine direction (GPS, accelerometer) and can often auto-calibrate.
In cases where you want or need a more accurate direction reading, the Wind & Weather Meter app has an option in the settings to use your phone's compass instead.
- If you are using your phone's compass direction remember you will need to point the phone in the direction the winds are coming from. You can use the audio jack mount to align the WEATHERmeter and your phone perfectly. However, the meter can be up to 15 degrees off-axis and still measure winds accurately.
There is a replaceable CR2450 battery in the WEATHERmeter. It is designed to provide approximately 500 hours of use on low power and 300 on high power, which should be many years of normal sampling. If your battery dies you can easily replace it. Just peel off the silicone "skin" to reveal a battery door. Slide the battery door open, replace the battery, and put the skin back on. See Battery Replacement for more info and an instructional video.