Grundig MDI231 Manual De Instrucciones página 17

5. Enable/disable beep sound:
In temperature measuring state,
press "2" to disable or enable the
beep sound.
6. Call measurement records:
In temperature measuring state, long
press "2" for about 3s to make the
beep sound and display the meas-
urement records in the above se-
quence. Then each time you press
"2", the previous record will be dis-
played (there are a total of up to 32
temperature value records).
7. Memory clearance:
In temperature measuring state,
press and hold "2" and meanwhile
press and hold the On/Off key for
about 3s, and the screen will be
cleared with four "beep" sounds (all
records are deleted).
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