Milwaukee MA9069 5000 uS/cm Conductivity Solution hydroponics pH meter replace your filter every 90

replace your filter every 90 days or after 100 gallons of use

Simple one point calibration

Large digital LCD display for easy reading

2 mg/L) to prevent algae

Milwaukee MA9069 5000 uS/cm Conductivity Solution hydroponics pH meter replace your filter every 90DESCRIPTION The performance of conductivity probes are affected by use due to residue build up and aging. MA9069 is a lab grade 5000 S cm conductivity solution standard prepared against a NIST traceable potassium chloride solution that allows you to recalibrate your conductivity meter or tester. Check your meter or tester's manual to find the correct calibration standard for your meter. Conductivity readings are effected by temperature. To help with