pH, Conductivity & TDS Meters
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2,752 Results
hach sc200 controller
$200.00or Best OfferFree shippingHach DR3900
$305.004 bids$35.00 shippingEnding Today at 3:29PM PDT14h 16mZeroWater Z-Tester TDS Digital Meter Tester OEM ORIGINAL Zero Water NOS
$14.95or Best Offer$6.00 shippingDr.meter Upgraded High Accuracy Backlit Two-Color LCD Display pH Meter with ATC
$29.99Free shippingOnly 1 left!YSI ProDSS Water Quality Meter GPS 4 Port Cable Assembly Turbidity Sensor NEW
$5,399.99or Best OfferFree shippingMETTLER TOLEDO INLAB 413 52-000-100 ELECTRODE USED IN ORIGINAL BOX-MULTIPLE
$50.00or Best Offer$12.99 shippingHach DR900 Multiparameter Portable Colorimeter
$740.00Free shippingHach HQ40D PH/Conductivity Dissolved Oxygen Multi-Parameter Meter - UNTESTED
$129.99or Best OfferFree shippingHach HQ2200 pH/DO/Conductivity Meter NEW
$2,400.00$12.32 shippingOakton Ph 5 Meter With Case. Has Everything But Ph Electrode New Never Used
$13.501 bid$16.45 shippingEnding Saturday at 11:00AM PDT4d 9hMettler Toledo pH Sensor InPro3250i/SG/120 52005373
$395.00or Best OfferFree shippingApera PH850-WW Portable pH Meter for Wastewater Treatment (LabSen 333 Electrode)
$307.00Estimated delivery dateEst. delivery Fri, May 17Apera EC400 Portable EC (Conductivity)/TDS Meter Kit, 0 to 200.0 MS/cm Range
$328.00Estimated delivery dateEst. delivery Fri, May 17New ListingApera Instruments Value Series PH850-MT Portable pH Meter Kit for Meat
$144.95or Best OfferFree shippingApera Instruments AI311 Premium Series PH60 Waterproof pH Pocket Tester Kit
(16)16 product ratings - Apera Instruments AI311 Premium Series PH60 Waterproof pH Pocket Tester Kit$79.99Was: $99.99or Best Offer$10.80 shipping9 watchingMilwaukee T76 Waterproof High Range Total Dissolved Solids Pen (TDS)
$38.00Estimated delivery dateEst. delivery Fri, May 17Accumet AR50 Dual Channel pH/Ion/Conductivity Meter
$69.00or Best OfferFree shippingMesa Labs Neo-2 Meter (R16)
$250.00$15.00 shippingTester Waterproof Chlorine Portable Digital Hydrogen Meter Water Quality
$20.32Free shippingNew ListingAPERA INSTRUMENTS Value Series PH850 Portable Handheld pH Meter Kit (AI5510)
$148.99or Best OfferFree shippingMilwaukee CD611 Digital Conductivity Pen (EC) for Hydroponics
$29.99Estimated delivery dateEst. delivery Fri, May 17Thermo Scientific Orion Star A211 A-Series Benchtop pH Meter Lab Instrument
$69.99or Best Offer$11.78 shippingHach HQ40d Portable Multi-probe Multi Handheld Meter
$269.00Trending at $450.00eBay determines this price through a machine learned model of the product's sale prices within the last 90 days.Free shippingApera PH700 Benchtop Lab pH Meter 0.01 Accuracy with 3-in-1 pH/Temp. Electrode
$294.00Estimated delivery dateEst. delivery Fri, May 17APERA LabSen 753 Titanium-body Spear pH/Temp. Electrode for Food Samples
$250.00Estimated delivery dateEst. delivery Fri, May 17VIVOSUN Soil Tester, 3-in-1 Plant Moisture Meter Light PH Tester
$11.39Was: $11.99or Best OfferFree shippingHach HQ1140 Portable Dedicated Conductivity/TDS Meter
$800.00or Best Offer$35.00 shippingMilwaukee MC410 PRO Total Dissolved solids (TDS) Monitor
$109.00Estimated delivery dateEst. delivery Fri, May 17PH Meter, TDS&EC PPM Meter Water Tester for Household Drinking,Pool and Aquarium
$8.99 to $29.99Was: $11.99Free shipping74 soldHM Digital TDS-4 Pocket Size TDS Tester Meter with 0-9990 ppm Measurement Range
$6.95Trending at $9.10eBay determines this price through a machine learned model of the product's sale prices within the last 90 days.or Best Offer$6.95 shippingApera EC60-Z Smart Bluetooth Conductivity/TDS Tester for General water solutions
$145.00Estimated delivery dateEst. delivery Fri, May 17Denver Instruments Model 215 pH Meter
$69.99$20.00 shippingBarnant 559-3800 Digi Sense Digital PH/MV/ORP Meter
$125.99Estimated delivery dateEst. delivery Fri, May 17or Best OfferAccumet excel XL 15 pH Meter, Touchscreen, Fisher Scientific
$129.00or Best OfferFree shippingMilwaukee EC59 PRO Waterproof 3-in-1 Conductivity / TDS & Temperature Tester
$61.00Estimated delivery dateEst. delivery Fri, May 17Milwaukee, MW101 Automated Portable pH/Temperature Meter
$110.95Free shippingHanna Instruments Primo EC and TDS Testers Conductivity Meter
$20.00Was: $25.00or Best Offer$8.30 shippingPocket Digital pH Meter Tester Pen 0.05pH - ATC Waterproof for Pool Aquarium Lab
$10.32Estimated delivery dateEst. delivery Fri, May 17474 soldVintage Scott-Sanchis Method Water Fluoride Tester JB5A
$24.54or Best Offer$8.85 shippingMilwaukee, MW100 Low Cost Portable pH Tester/Meter
$98.95Free shippingNalco Portable Waterproof Conductivity Meter with Probe 400-C0050.88, 0-2000 uS
$299.95Free shippingOnly 1 left!Atlas Scientific Lab Grade pH Probe 1 x Double junction silver / silver chloride
$60.00or Best Offer$13.45 shippingMilwaukee EC60 PRO Waterproof 3-in-1 EC / TDS/Temp Tester with Replaceable Probe
$61.00Estimated delivery dateEst. delivery Fri, May 172 watchingLot of 3 Thermo Scientific Orion Probes pH ATC 927005MD 9157BNMD 927007MD
$129.00or Best OfferFree shippingPH Meter X002S2YUR3 Range 0.00-14.00
$10.00or Best Offer$4.00 shippingAccumet Basic AB15 Plus pH Meter
$119.00or Best OfferFree shippingMilwaukee MW801 PRO 3-in-1 Low Range pH, EC, TDS Combo Meter with ATC
$231.00Estimated delivery dateEst. delivery Fri, May 174 watchingNew ListingVWR SYMPHONY SB70P BENCHTOP METER
$144.99or Best Offer$36.72 shippingAPERA LabSen 243-6 pH/Temp. Electrode for Test Tubes and Small Samples ( 0.2mL)
$199.00Estimated delivery dateEst. delivery Fri, May 173 watchingAPERA LabSen 213 Glass-body pH/Temp. Electrode for General Water Solutions
$133.00Estimated delivery dateEst. delivery Fri, May 17