Milwaukee M10442 1500 ppm TDS Solution Sachets (25) complete pH kit and aquaponics systems where stable

and aquaponics systems where stable pH is essential for aquatic health

PTFE Membrane: Oxygen-permeable polytetrafluoroethylene membrane sensor

5 oz) UPC 793573622341 WHAT'S INCLUDED

Simply fill the upper reservoir and let gravity do the work

Milwaukee M10442 1500 ppm TDS Solution Sachets (25) complete pH kit and aquaponics systems where stableDescription The performance of conductivity probes are affected by use due to residue build up and aging. M10442 is a lab grade 1500 ppm TDS solution standard prepared against a NIST traceable potassium chloride solution that allows you to recalibrate your meter or tester. Check your meter or tester's manual to find the correct calibration standard for your meter. TDS readings are effected by temperature. To help with this, a chart of the actual ppm