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1. 5M 32mm (1 1/4") Reinforced PVC Ribbed Hose
2. 5M 25mm (1") Reinforced PVC Ribbed Hose
3. 5M 20mm (3/4") Reinforced PVC Ribbed Hose
4. 12mm - 3/8" BSP Thread Push Fit Stem Fitting
5. 12mm x 10mm x 12mm Push Fit Reducingl Tee Connection
6. 12mm x 12mm x 10mm Push Fit Reducingl Tee Connection

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HM Digital COM-80 EC/TDS HydroTester (COM-80)
HM Digital COM-80 EC/TDS HydroTester

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HM Digital COM-80 EC/TDS HydroTester HM Digital COM-80 EC/TDS HydroTester
The COM-80 HydroTester from HM Digital measures Electrical Conductivity and Total Dissolved Solids in water. It is ideal for hydroponics, gardening, pools, spas, aquariums, reef tanks, water ionizers, drinking water and more.

  • Measures electrical conductivity (EC), total dissolved solids (TDS).  Exellent for nutrient testing.
  • Four scales: EC: S, mS;  TDS: ppm, ppt 
  • Automatic Temperature Compensation (ATC)
  • Water resistant
  • Measurement Range: 0-9990 S; 0-5000 ppm; 0-9.9 mS; 0-5.0 ppt
  • 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.
  • Factory Calibrated: The COM-80 meter is calibrated with a 1413 S solution. The meter can be recalibrated with digital calibration using the push buttons.
  • Includes a protective cap and batteries.

Technical Information

  • EC Range: 0 - 9990 S; 0 - 9.9 mS 
  • TDS Range: 0 - 5000 ppm (mg/L); 0 - 5.0 ppt 
  • Temperature Range: 1-80 C; 33-176 F
  • Resolution: 1 S/ppm; 0.1 mS/ppt.  
  • Temp. resolution: 0.1 C/F
  • Accuracy: +/- 2%
  • EC-to-TDS Conversion Factor: NaCl (avg of 0.5).
  • Calibration: Digital calibration by push button.
  • Probe: Fixed
  • Housing: Water resistant
  • Power source: 3 x 1.5V button cell batteries (included)  (model LR44 or equivalent)
  • Dimensions: 15.3 x 3.2 x 1.8 cm (6.0 x 1.3 x 0.7 inches)
  • Weight: 53.9g (1.9 oz)

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