YSI 556 Multi Parameter Water Quality Instrument Rental

  • Field Replaceable Dissolved Oxygen Membranes
  • Extensive Data Logging Capabilities
  • Flow Cell (Included with Rental)
  • All Readings Appear On One Large Easy To Read Display
  • Multiple Cable Lengths For Various Applications
  • Operates On Field Replaceable Alkaline Batteries (4-Cs)

Discontinued

We no longer offer this product.

If available, alternative products will be listed below.

The YSI 556 monitoring system is a rugged and proven instrument for field use. The instrument is easily portable and configured for multiple applications such as for parameters in 2" monitoring wells, open water monitoring, and for Low Flow Sampling using the unit's accompanying in-line flow cell.

Parameter Range Accuracy
Dissolved Oxygen (%) 0 to 500% 0 to 200% (± 2% of reading or 2% air saturation, whichever is greater)
200% – 500% (± 6% of reading)
Dissolved Oxygen (mg/L) 0 to 50 mg/L 0 to 20 mg/L (± 2% of reading or 0.2 mg/L, whichever is greater)
20 – 50 mg/L (± 6% of reading)
Temperature -5 to 45°C ±0.15°C
Conductivity 0 to 200 mS/cm (auto range) ±0.5% of reading or 0.001 mS/cm, whichever is greater (1-, 4-m cable)
±1% of reading or 0.001 mS/cm, whichever is greater (20-m cable)
Salinity 0 to 70 ppt ±1.0% of reading or 0.1 ppt, whichever is greater
pH 0 to 14 units ±0.2 units
ORP --1999 to +1999 mV ±20 mV in redox standards
TDS 0 to 100 g/L -------