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HD2301.0R
1. Input for probes, 8-pole DIN45326 connector.
2. Battery symbol: displays the battery charge level.
3. Function indicators.
4. Secondary temperature display line.
5. DATA/ENTER key: during normal operation displays the maximum (MAX), the minimum
(MIN) and the average (AVG) of current measurements; in the menu, confirms the current
selection.
6. CLR/ESC key: during normal operation resets the maximum, the minimum and the average of
current measurements; in the menu, it resets the value set with the arrows.
7. HOLD/ key: freezes the measurement display during normal operation; in the menu,
increases the current value.
8. UNIT/MENU key: it allows selection of the unit of measurement; when pressed together with
the DATA key, it allows to open the menu.
9. REL/ key: during normal operation enables the relative measurement (displays the difference
between the current value and the logged value when the key is pressed); in the menu, decreases
the current value.
10. ON-OFF/AUTO-OFF key: turns the instrument on and off; when pressed together with the
HOLD key, disables the AutoPowerOff function.
11. MAX (maximum value), MIN (minimum value) and AVG (average value) symbols.
12. Main display line of relative humidity and other derived measurements.
13. Line for symbols and comments.