La Crosse Technology WS-7390U Instruction Manual page 18

VII. Viewing and Operating with Multiple Remote Sensors
1. To view the temperature of a different remote sensor
press and release the "CHANNEL" button. A shift
from one "boxed" number to the next should be
observed in the OUTDOOR LCD.
2. The minimum and maximum temperature of the
additional remote sensor will be displayed below the
current temperature of the remote sensor in the
OUTDOOR LCD.
3. To reset the minimum and maximum temperature
readings it is necessary to select which remote sensor
you wish to reset. Press and hold the "RESET"
button for 5 seconds and the records for the selected
remote sensor will be reset.
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