
To calibrate the pressure sensor and the temperature sensor
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1.Press B to enter the Barometer/ Thermometer Mode (page 
2.In the Barometer/Thermometer Mode, hold down E for about two seconds until either OFF or the reference temperature value starts to flash. This is the setting screen.
•If you want to calibrate the barometric pressure sensor, press D to move the flashing to the middle display area. This is the pressure sensor calibration screen.
•At this time, OFF or the barometric pressure value should be flashing on the display.