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Osmotics Water Filters are fast becoming the leading brand within the water filtration industry. Our water filters and Reverse Osmosis systems improve water taste and quality by reducing impurities.
HM COM-360 4 in 1 PH Meter EC/TDS/PH/Temp Waterproof Combo LCD Digital Portable ATC Calibration Data Hold Tool Tester
COM-360: Waterproof Professional Series pH/EC/TDS/Temp Meter
110.00 Grams
Calculated at checkout
COM-360: Waterproof Professional Series pH/EC/TDS/Temp Meter
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Product Description

The COM-360 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.


  • Measures Potential Hydrogen (pH), Electrical Conductivity (EC), Total Dissolved Solids (TDS), Salinity and Temperature
  • Five scales: pH, µS, mS, ppm 0.5 (NaCl) Scale & 0.7 (442™) Scale
  • Automatic Temperature Compensation (ATC) using three temperature coefficients
  • Waterproof housing (IP-67 rating)
  • Digital Calibration (push button) to any point within the meter’s range
  • Auto-off function, data-hold function and low-battery indicator
  • Display: large and easy-to-read LCD screen includes simultaneous temperature reading
  • Replaceable Sensor (model SP-CP)
  • Factory Calibrated (pH/EC/TDS)
  • Includes translucent cap, 2 (AAA) alkaline batteries, pH 4 & 7 calibration solutions, pH storage solution and lanyard



  • pH Range: 0 – 14 pH
  • EC Range: 0 – 9990 µS; 0 – 9.99 mS
  • TDS Range: 0 – 8560 ppm (0.7 Scale); 0 – 5000 ppm (0.5 Scale)
  • Temperature Range: 0-55 °C; 32-130°F
  • Resolution: 0-99: 0.1 µS/ppm/ 0.01mS ; 100-999: 1 µS/ppm; 1000-9990: 10 µS/ppm. Temp. resolution is 0.1 °C/F
  • Accuracy: +/- 2%
  • EC to TDS Conversion Factor: Non-linear conversions for KCl, 442TM or NaCl solutions, selected by the user.
  • Probe: Detachable platinum electrodes & pH glass sensor with reference tube electrodes
  • Housing: Water resistant
  • Power source: 2 x Triple-A (AAA) included
  • Dimensions: 20.0 x 3.4 x 3.4 cm (7.8 x 1.3 x 1.3 inches)
  • Weight:110g (4.0 oz)
  • 442 is a registered trademark of the Myron L Company
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What is Reverse Osmosis?

Reverse osmosis (RO) is a filtration method that removes many types of large molecules and ions from solutions by applying pressure to the solution when it is on one side of a selective membrane. The result is that the solute is retained on the pressurized side of the membrane and the pure solvent is allowed to pass to the other side.

Reverse osmosis is most commonly known for its use in drinking water purification from seawater, removing the salt and other substances from the water molecules.

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