WT-20 Conductivity TDS Meter
POWER / SET - Power on/off, Enter setting mode
(push 2 sec), Enter while in setting mode.
MODE / q Key - Conductivity/TDS mode switch,
Roll up while in setting mode
HLD / CAL /p Key - Freeze display, Calibration
function, Roll down while in setting mode
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2
1) Battery Cover
2) Lcd Display
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3) Power / Set Key
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4) Hld / Cal / Down Key
5) Mode / Up Key
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6) Electrode Cover
7) Conductivity Reading
(unit: uS or mS ) or TDS
Reading (unit: ppt or
ppm)
8) Display temperature in
either degree Celsius or
degree Fahrenheit
9) Calibration Mode
Indicator
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10) Freeze Display
11) Low Battery Indicator
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11
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