Sper Scientific 850034K AquaShock® Water Purity Kit - Manual (Page 18)

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Turning the Meter On/Off
1. Press POWER to turn the meter on. The meter will default
to the last used measurement and temperature scales.
2. Press and hold POWER for 2 seconds to turn the meter off.
Indicator Light Descriptions
Meter Status Indicator Status
Power off Light off
Power on Green light on for 5 seconds, then light off
Low battery Red light flashing every 5 seconds
Charging battery Blue light on
Scale Selection
1. Press RANGE to switch between the Conductivity (µS & mS)
and TDS (ppm & ppt) scales (see Fig. A and Fig. B).
Fig. A Fig. B