The COM-300 is a professional pH / EC / TDS / Temp level meter ideal for all water quality testing, hydroponics, water purification applications, wastewater regulation, aquaculture, colloidal silver, labs and scientific testing, pools and spas, ecology testing, boilers and cooling towers, water treatment and more.

COM-300 Features

• Measures Potential Hydrogen (pH), Adelectrical Conductivity (EC), Total Dissolved Solids (TDS), Salinity and Temperature.
• Five Scales: pH, µS, mS, pp m 0.5 (NaCl) Scale and 0.7 (442 &Trade;) Scale-Automatic Temperature Compensation (ATC) using three temperature coefficients
• Watertight Housing (rated IP-67)
• Digital (push button) calibration to any point within the meter’s range
• Auto-off feature, data hold feature, and low battery indicator
• Display: Large, easy-to-read LCD display includes simultaneous temperature readout
• Replaceable sensor (model SP-CP)
• Factory calibrated (pH/EC/TDS)
• Includes translucent cap, 2 alkaline (AAA) batteries, pH 4 and 7 calibration solutions, pH storage solution, and lanyard.