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    • Test, Measurement & Inspection
    • Industrial Test Meters & Detectors
    • pH, Conductivity & TDS Meters

    pH, Conductivity & TDS Meters

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    416 results

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    • Water Quality Tester Testing Electrolysis Iron Bars Tester Accessory Newest
      SPONSORED

      Water Quality Tester Testing Electrolysis Iron Bars Tester Accessory Newest

      AU $25.32
      Was: AU $28.44
      Free postage
      or Best Offer
    • 1PCS Electrolyzer Quick Water Quality Testing Electrolysis Iron Bars Tester
      SPONSORED

      1PCS Electrolyzer Quick Water Quality Testing Electrolysis Iron Bars Tester

      AU $26.41
      Was: AU $28.39
      Free postage
      or Best Offer
    • 10-in-1 Water Quality Tester 0-14 PH TDS EC Meter Temperature Tester Pen
      SPONSORED

      10-in-1 Water Quality Tester 0-14 PH TDS EC Meter Temperature Tester Pen

      AU $49.49 to AU $54.01
      Was: AU $52.09
      Free postage
    • ORP 1 ORP Redox Electrode, BNC Type Connector Replacement Probe for Tester N5Q6
      SPONSORED

      ORP 1 ORP Redox Electrode, BNC Type Connector Replacement Probe for Tester N5Q6

      AU $73.97
      AU $19.47 postage
    • Digital Electric TDS Meter PPM Tester Hydroponics Water Test Pen purity

      Digital Electric TDS Meter PPM Tester Hydroponics Water Test Pen purity

      AU $4.74
      AU $7.43 postage
    • HM Digital DM1 Dual TDS Meter with 1/4" Fittings for Reverse Osmosis Systems

      HM Digital DM1 Dual TDS Meter with 1/4" Fittings for Reverse Osmosis Systems

      AU $51.32
      AU $20.32 postage
      367 sold
    • Digital Electric TDS Meter PPM Tester Hydroponics Water Test Pen purity

      Digital Electric TDS Meter PPM Tester Hydroponics Water Test Pen purity

      AU $6.93
      AU $7.77 postage
    • HM TDS METER MEASURING TOTAL DISSOLVED SOLIDS FOR HYDROPONICS WATER SYSTEMS

      HM TDS METER MEASURING TOTAL DISSOLVED SOLIDS FOR HYDROPONICS WATER SYSTEMS

      AU $38.00
      Free postage
      or Best Offer
    • AZ9861 AZ Ph Meter Water Quality Analyzer Electronic Data Logger With Printer

      AZ9861 AZ Ph Meter Water Quality Analyzer Electronic Data Logger With Printer

      AU $462.28
      AU $45.95 postage
      or Best Offer
    • CIXI INSTRUMENTS CX-ICM-1105-01 INDUSTRIAL CONDUCTIVITY METER

      CIXI INSTRUMENTS CX-ICM-1105-01 INDUSTRIAL CONDUCTIVITY METER

      AU $373.30
      Free postage
      or Best Offer
    • NEW Testo 206-PH1 PH Meter Tester measuring instrument probe head for liquids

      NEW Testo 206-PH1 PH Meter Tester measuring instrument probe head for liquids

      AU $226.97
      Free postage
      or Best Offer
    • LCD Digital PH Meter for Water Hydroponics Pool Aquarium Pocket Size 0-14 PH

      LCD Digital PH Meter for Water Hydroponics Pool Aquarium Pocket Size 0-14 PH

      AU $14.62
      Free postage
      or Best Offer
    • Aquaresearcher AB33PH-F pH Bench Meter with pH Electrode

      Aquaresearcher AB33PH-F pH Bench Meter with pH Electrode

      AU $1,589.50
    • Water Quality Tester Testing Electrolysis Iron Bars Tester Accessory Newest
      SPONSORED

      Water Quality Tester Testing Electrolysis Iron Bars Tester Accessory Newest

      AU $26.32
      Was: AU $28.60
      Free postage
      or Best Offer
    • 4in1 Multi-functional Water Quality Tester PH/TDS/EC/Temperature Meter Test Pen
      SPONSORED

      4in1 Multi-functional Water Quality Tester PH/TDS/EC/Temperature Meter Test Pen

      AU $21.18
      Was: AU $22.29
      AU $3.15 postage
    • Benchtop Lab pH Meter mV Tester With Temperature Display 0 to 14.00pH
      SPONSORED

      Benchtop Lab pH Meter mV Tester With Temperature Display 0 to 14.00pH

      AU $206.76
      Was: AU $229.73
      AU $15.83 postage
      or Best Offer
      4 watching
    • Digital Electric TDS Meter PPM Tester Hydroponics Water Test Pen Purity

      Digital Electric TDS Meter PPM Tester Hydroponics Water Test Pen Purity

      AU $4.61
      AU $3.29 postage
    • Pen Type EC Meter ABS LCD Househeld Conductivity Pen ATC Portable Water Qual

      Pen Type EC Meter ABS LCD Househeld Conductivity Pen ATC Portable Water Qual

      AU $23.46
      Free postage
      or Best Offer
    • LCD Digital TDS EC PH Meter Tester Aquarium Pool Pen Water Meter PH Test Paper

      LCD Digital TDS EC PH Meter Tester Aquarium Pool Pen Water Meter PH Test Paper

      AU $1.95 to AU $12.36
      AU $3.68 postage
    • Water Quality Tester High Accurate 0-1999ppm Water Quality Detector With Bracket

      Water Quality Tester High Accurate 0-1999ppm Water Quality Detector With Bracket

      AU $50.98
      Free postage
    • Testo 206-PH1 PH Meter Tester instrument probe head for liquids 0563 2061 New

      Testo 206-PH1 PH Meter Tester instrument probe head for liquids 0563 2061 New

      AU $229.81
      Free postage
      or Best Offer
    • HM Digital TDS-4, HMD Water Quality Purity Tester/Meter Brand New

      HM Digital TDS-4, HMD Water Quality Purity Tester/Meter Brand New

      4 out of 5 stars (16)16 product ratings - HM Digital TDS-4, HMD Water Quality Purity Tester/Meter Brand New
      AU $12.95
      AU $32.98 postage
      or Best Offer
    • Digital pH Meter Milwaukee ph Tester Made in Europe - Hydroponics Guru

      Digital pH Meter Milwaukee ph Tester Made in Europe - Hydroponics Guru

      AU $62.99
      Free postage
      or Best Offer
    • 0-1999ppm Analyzer Meter Detector Monitor Water Quality Tester Water Quality

      0-1999ppm Analyzer Meter Detector Monitor Water Quality Tester Water Quality

      AU $50.03
      Free postage
    • Portable Ph Meter with 2 Point Manual Calibration

      Portable Ph Meter with 2 Point Manual Calibration

      AU $263.77
    • Eutech PCSENSOR for PCSTestr35 PCTestr35 and PTTest35

      Eutech PCSENSOR for PCSTestr35 PCTestr35 and PTTest35

      AU $165.00
      Free postage
    • 2 x HANNA PH METER BUFFER CALIBRATION SOLUTION 4.01 pH  + 7.01pH HI70007 HI70004

      2 x HANNA PH METER BUFFER CALIBRATION SOLUTION 4.01 pH + 7.01pH HI70007 HI70004

      AU $15.91
      AU $19.10 postage
      Only 3 left
    • 3 in 1 Water Quality Meter TDS- EC Tester Digital LCD Water Testing Pen Pure

      3 in 1 Water Quality Meter TDS- EC Tester Digital LCD Water Testing Pen Pure

      AU $7.77
      Free postage
      or Best Offer
    • Apera T621075120 PH60F Flat pH Tester (Full Kit) *NEW*
      SPONSORED

      Apera T621075120 PH60F Flat pH Tester (Full Kit) *NEW*

      4.5 out of 5 stars (4)4 product ratings - Apera T621075120 PH60F Flat pH Tester (Full Kit) *NEW*
      AU $190.10
      AU $118.82 postage
      or Best Offer
    • Thermo Scientific No Cal pH Electrode 5107nc (Dd) (a211)
      SPONSORED

      Thermo Scientific No Cal pH Electrode 5107nc (Dd) (a211)

      AU $252.05
      Was: AU $360.07
      AU $44.48 postage
    • Portable Conductivity Meter Monitor Water Quality Tester Analyzer
      SPONSORED

      Portable Conductivity Meter Monitor Water Quality Tester Analyzer

      AU $163.98
      Was: AU $182.20
      Free postage
      or Best Offer
      5 watching
    • Electrolyzer Quick Water Quality Testing Electrolysis Iron Bars Tester
      SPONSORED

      Electrolyzer Quick Water Quality Testing Electrolysis Iron Bars Tester

      AU $23.05
      Was: AU $25.06
      Free postage
    • PH Meter Tester Water Aquarium Pool Pen Digital Hydroponics Portable Meter

      PH Meter Tester Water Aquarium Pool Pen Digital Hydroponics Portable Meter

      3.5 out of 5 stars (5)5 product ratings - PH Meter Tester Water Aquarium Pool Pen Digital Hydroponics Portable Meter
      AU $49.99
      AU $2.99 postage
      or Best Offer
    • TDScan 1 - Total Dissolved Solids / EC Meter - Water Chemistry, Hydroponics etc.

      TDScan 1 - Total Dissolved Solids / EC Meter - Water Chemistry, Hydroponics etc.

      AU $35.00
      Free postage
      or Best Offer
    • Conductivity Meter Water Quality Monitor Analyzer Portable Conductivity Tester

      Conductivity Meter Water Quality Monitor Analyzer Portable Conductivity Tester

      AU $213.88
      Was: AU $237.65
      Free postage
      or Best Offer
      6 watching
    • 0-1999ppm Analyzer Meter Detector Monitor Water Quality Tester Detector

      0-1999ppm Analyzer Meter Detector Monitor Water Quality Tester Detector

      AU $50.86
      Free postage
      or Best Offer
    • Food pH/temperature Meter for Semi-solid Substances - 0563-2062

      Food pH/temperature Meter for Semi-solid Substances - 0563-2062

      AU $397.10
    • SALE 067 Body pH TEST Tape Paper Roll 4 Saliva & Urine Acid 5.5 Alkaline Health

      SALE 067 Body pH TEST Tape Paper Roll 4 Saliva & Urine Acid 5.5 Alkaline Health

      AU $12.89 to AU $108.02
      AU $28.37 postage
    • Portable Pocket Milk Cheese Soil Food Purity Monitor Electrode Tester Ph Meter
      SPONSORED

      Portable Pocket Milk Cheese Soil Food Purity Monitor Electrode Tester Ph Meter

      AU $66.53
      Free postage
    • Ph Meter Digital Water Purity Tester Biochemistry Laboratory Lcd Backlight
      SPONSORED

      Ph Meter Digital Water Purity Tester Biochemistry Laboratory Lcd Backlight

      AU $62.72
      Free postage
      or Best Offer
    • 4-In-1 pH Meter pH/TDS/EC/Temperature Four-in-one Multi-function Test Pen

      4-In-1 pH Meter pH/TDS/EC/Temperature Four-in-one Multi-function Test Pen

      AU $21.62
      AU $5.10 postage
    • 1PCS Electrolyzer Quick Water Quality Testing Electrolysis Iron Bars Tester

      1PCS Electrolyzer Quick Water Quality Testing Electrolysis Iron Bars Tester

      AU $25.32
      Was: AU $28.44
      Free postage
      or Best Offer
    • Pen Type EC Meter ABS LCD Househeld Conductivity Pen ATC Water Quality Measur HG

      Pen Type EC Meter ABS LCD Househeld Conductivity Pen ATC Water Quality Measur HG

      AU $22.98
      Free postage
      or Best Offer
    • Testo 206-PH1 PH Meter Tester instrument probe head for liquids 0563 2061

      Testo 206-PH1 PH Meter Tester instrument probe head for liquids 0563 2061

      AU $183.77
      Free postage
      or Best Offer
    • 4-In-1 pH Meter pH/TDS/EC/Temperature Four-in-one Multi-function Test Pen New

      4-In-1 pH Meter pH/TDS/EC/Temperature Four-in-one Multi-function Test Pen New

      AU $21.54
      AU $5.10 postage
    • 4-in1 PH Meter pH/TDS/EC/Temperature High-precision Water Quality Test  Detector

      4-in1 PH Meter pH/TDS/EC/Temperature High-precision Water Quality Test Detector

      AU $21.62
      AU $5.49 postage
    • Pen Type EC Meter ABS LCD Househeld Conductivity Pen ATC Portable Water Quality

      Pen Type EC Meter ABS LCD Househeld Conductivity Pen ATC Portable Water Quality

      AU $23.44
      Free postage
      or Best Offer

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