TFA 30.3029 Manual Del Usuario página 129

NOTE: User may press the SET/CH key to shift to show the minimum or maximiun
readings of the other outdoor channels.
RESETTING THE MINIMUM AND MAXIMUM READINGS:
User may reset the minimum and maximum temperature data to the current value
by the following steps:
1. Press the "MIN/MAX/+" key once to display the minimum data.
2. Press and hold the "MIN/MAX/+" key for about 3 seconds to reset all the
minimum / maximum data to the current values in a single action.
3. Data of all outdoor and indoor transmitter will be reset at the same time.
868 MHz RECEPTION CHECK
The Temperature Station should receive the outdoor temperature data within a few
minutes after setup. If the temperature data are not received about 2 minutes after
58