Model 1, Rapid measurement mode
The detector measures for 10 seconds and then displays measurement value on LCD.
Model 2, Standard measurement mode
The detector measures for 20 seconds and then displays measurement value on LCD.
Model 3, Accurate measurement mode
The detector measures for 20 seconds for 8 times and then displays the average on LCD screen. It
is mainly used to test low concentration and unstable anion products to obtain more accurate data.
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