HI7004-023 is a high quality pH 4

EC Probe: MA812 (fixed

IP67 Waterproof Rating: Fully protected against dust and water immersion

Calibrate accurately and protect your electrode investment with the Milwaukee Wine pH Starter Kit (PH-COMBO) — a comprehensive 5-bottle solution set engineered specifically for wine pH testing and electrode maintenance

✅ Range: 0 to 1990 µS/cm — covers full spectrum of hydroponic and agricultural EC needs

Milwaukee MA9069 5000 uS/cm Conductivity Solution calibration solution HI7004-023 is a high qualityDESCRIPTION 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