Replaceable Sensors: SP-C2 conductivity sensor and SP-P5 pH sensor extend instrument lifespan and reduce replacement costs

Calibrate with distilled or deionized water before first use and periodically thereafter

Typical EMC Dev: ±0

Simple 1 point calibration using distilled or deionized water

5 (NaCl) and 0

COM-300 Waterproof Professional Series pH/EC/TDS/Temp Meter-HM Digital PSC-50 Replaceable Sensors: SP-C2 conductivity sensorThe COM 300 is a professional grade level pH EC TDS Temp meter ideal for all water quality testing, hydroponics, water purification applications, wastewater regulation, aquaculture, colloidal silver, labs & scientific testing, pools & spas, ecology testing, boilers & cooling towers, water treatment and more. FEATURES: Measures Potential Hydrogen (pH), Electrical Conductivity (EC), Total Dissolved Solids (TDS), Salinity and Temperature Five scales: pH,