8
6. Calibration
The ultrasonic sensor has been calibration before
leaving the factory. We do not recommend that
customers do calibration by themselves.
Customers use this feature only when the wind speed
does not return to zero when there is no wind
After the product works normally, use a cloth or
sponge with good water absorption (prevent the echo
of the ultrasonic waves) to completely wrap the air
inlet.
With an open ended paperclip, press and hold the
CAL button for three seconds, the top LED light will
be on. After releasing the CAL button, place the
product on the table. After five seconds, the top LED
light will flash. At this time it is in the calibration
mode.
Wait for the LED to flash, the calibration is
over, and the product automatically enters the normal
working mode.
7. Wi-Fi Configure with gateway
If you want to view the Ultrasonic Sensor data on
your mobile application, you need to pair this device
