Whether you're testing water quality in the field

9999% of bacteria and 99

Range: 0-9990 ppm (mg/L)

000 gallons total with 2 filters)

The Milwaukee MW190 MAX DO Bench Meter is preferred by people looking for lab level accuracy without the high cost

Quick Calibration Solution For GroLine PH & EC Meters (2 X 20 ML Sachets) 810666009214 Whether you're testing water qualityHI50036 is a quick calibration solution for use with Hannas GroLine pH and or EC TDS meters. Using the Quick Cal function found in compatible meters allows for a single point calibration for pH and or conductivity sensors. Each sachet has the lot number and expiration date stamped on it and is made of light block foil ensuring freshness each time one is opened. Hannas line of calibration solutions have been specially formulated to have an expiration