YSI ProQuatro (pH/Cond/ORP/Temp/DO)
Operation Manual
Specification Sheet
ItemDailyWeeklyMonthly
YSI ProQuatro Handheld  $57 $133 $380
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YSI ProQuatro (pH/Cond/ORP/Temp/DO) 4M Cable $103.50 $241.50 $690
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YSI ProQuatro Flow-Thru Cell $22.50 $52.50 $150
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The ProQuatro handheld multiparameter meter measures a variety of combinations of dissolved oxygen, conductivity, pH, ORP, and temperature.