Manufactured specifically for pH and ORP electrodes

0 Gallons Per Hour | 2 Black Berkey Filters Included

MI0031B calibration solution (1413 µS/cm) — included

Stage 5 — Mineral Stones

This single-station analog timer attaches directly to your garden hose and automatically controls sprinklers

HM Digital SP-C3 Replacement Probe – pH/EC/TDS/Temp Sensor for COM-300 891144000076 Manufactured specifically for pH andHM Digital SP C3 Replacement Probe for COM 300 Keep your COM 300 multi parameter meter performing at its best with the genuine HM Digital SP C3 replacement probe. Engineered for precision measurement of pH, Electrical Conductivity (EC), Total Dissolved Solids (TDS), and Temperature in a single sensor ideal for hydroponics, aquaculture, water quality testing, and laboratory use. Key Features Direct replacement probe for the HM Digital COM 300 meter