YSI Pro Plus w/Quatro Cable  (pH-DO-Cond-Temp-Sal-ORP-Baro)
Operation Manual
Product Specs
ItemDailyWeeklyMonthly
YSI Pro Plus w/ Quatro Cable Unit Only $41.25 $96.25 $275
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Unit w/4M Quatro Cable $70 $210 $625
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Unit w/10M Quatro Cable $85 $235 $675
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Unit w/20M Quatro Cable $95 $260 $700
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Unit w/30M Quatro Cable $100 $285 $725
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Flow Cell $5 $15 $45
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The YSI Professional Plus handheld multiparameter meter provides extreme flexibility for the measurement of a variety of combinations for dissolved oxygen, conductivity, specific conductance, salinity, resistivity, total dissolved solids (TDS), pH, ORP, pH/ORP combination, ammonium (ammonia), nitrate, chloride and temperature.

The new Quatro cable attached to the Pro Plus allows you to utilize 4-ports to measure temperature/conductivity, DO, and any two ISEs among pH, ORP, ammonium, chloride, or nitrate creating an extremely powerful handheld multiparameter instrument.