Sper Scientific 850034K AquaShock® Water Purity Kit - Manual (Page 21)

21
Clear Memory
1. Press MI and MR simultaneously for 2 seconds to clear all
memory (see Fig. A). The meter will return to Normal mode.
Hold
1. Press HOLD to hold the value (see Fig. A).
2. Press HOLD to release the hold value.
Note…
When in Hold Mode, all other functions will be disabled except
turning the meter off, backlight function, saving and exiting
Hold Mode.
Fig. A
Fig. A