YSI ProQuatro Multiparameter

Parameters

Range

Accuracy

Resolution

DO (% air sat.)

0 – 500 % sat.

± 2% of  reading (@0-200 %sat.)

0.1 % air sat.

DO (mg/l)

0 – 50 mg/l

± 2% of  reading (@0-20 mg/l)

0.01 mg/l

Salinity

0 – 70 ppt

± 1% of reading or ±0.1 ppt

0.01 ppt

Conductivity

0 – 200 mS/cm

± 0.5% of reading or ± 0.001 mS/cm

0.001-0.1 mS/cm

Temperature

-5 to 70 ^oC

±0.2 ^oC

0.1 ^oC

TDS

0 – 100 g/L  mS/cm

N/A

0.001-0.1 g/L

pH

0 – 14 pH

± 0.2 pH

0.01 pH

ORP(Redox)

-1999 – 1999 mV

± 20 mV

0.1 mV

Barometer

375 – 825 mmHg

± 3 mmHg

0.1 mmHg

Ammonium

0 – 200 mg/L-N

± 10% of  reading or ± 2 mg/L-N

0.1 mg/L

Nitrate

0 – 200 mg/L-N

± 10% of  reading or ± 2 mg/L-N

0.1 mg/L

Chloride

0 – 1000 mg/L

± 15% of  reading or ± 5 mg/L

0.1 mg/L