Hydroponics & Aquaponics: Optimize root zone oxygen for maximum plant growth

Easy Installation: Simple to fill with MA9071 Oxygen Electrolyte Solution and install on MA840 probe

3x Fluoride Filters (1-year supply based on 4-month lifespan each)

The Milwaukee PRO EC monitor offers:

Barcode: 810666007363

Hanna Instruments pH Electrode Storage Cap HI740200 - 12mm Compression Fitting (5-Pack) SE600 electrode care Hydroponics & Aquaponics: Optimize rootProtect and extend the life of your pH electrodes with the Hanna Instruments HI740200 storage cap system. Designed specifically for 12mm diameter probes, these professional grade storage caps maintain optimal electrode hydration between measurements. Key Features: Precision fit: Compression fitting design for standard 12mm diameter electrodes Optimal hydration: Holds 1cm of HI70300 storage solution to keep probe tips properly conditioned Threaded