pH, Conductivity & TDS Meters
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2,716 Results
HACH HQ11D Portable pH Meter with IntelliCAL Probe
$180.000 bids$9.21 shippingEnding May 21 at 11:36AM PDT3d 17hOPEN BOX New Milwaukee MW500 ORP Meter, BLUE Model
$79.99$9.45 shipping15 watchingMETTLER TOLEDO INLAB 413 52-000-100 ELECTRODE USED IN ORIGINAL BOX-MULTIPLE
$50.00or Best Offer$12.99 shippingNew ListingApera Instruments PH60 pH Tester (Great Condition, Used Once!)
$59.00or Best OfferFree shippingDr.meter Upgraded High Accuracy Backlit Two-Color LCD Display pH Meter with ATC
$29.99Free shippingOnly 1 left!Pocket Digital pH Meter Tester Pen 0.05pH - ATC Waterproof for Pool Aquarium Lab
$10.32Free shipping475 soldOakton Ph 5 Meter With Case. Has Everything But Ph Electrode New Never Used
$13.501 bid$16.45 shippingEnding Saturday at 11:00AM PDT16h 41mApera Instruments SX811-MS Portable pH Meter
$39.00$8.45 shippingYSI Professional Plus Water Tester Meter PRO DSS 4 Port Digital Sampling System
$574.000 bids$33.95 shippingEnding May 21 at 1:40AM PDT3d 7hFisher Scientific Accumet pH/mV Meter Model XL150
$187.50Was: $250.00or Best Offer$25.00 shippingFisher Scientific Accumet Research AR15 pH Meter
$247.50Was: $330.00or Best Offer$25.00 shippingVWR SympHony pH Probe Eq Mettler Toledo LE409 Light Edition pH Electrode Probe
$99.99or Best Offer$18.05 shippingYSI ProDSS Water Quality Meter GPS 4 Port Cable Assembly Turbidity Sensor NEW
$4,999.99or Best OfferFree shippingVIVOSUN Soil Tester, 3-in-1 Plant Moisture Meter Light PH Tester
$11.39Was: $11.99or Best OfferFree shippingHanna Instruments HI 9813-6 PH/EC/TDS/Temp. Meter
$79.00$13.55 shippingZeroWater Z-Tester TDS Digital Meter Tester OEM ORIGINAL Zero Water NOS
$14.95or Best Offer$6.00 shippingHach DR900 Multiparameter Portable Colorimeter
$880.00Free shippingHach HQ2200 pH/DO/Conductivity Meter NEW
$2,400.00$12.32 shippingNew ListingGeonics EM31-MK2 Ground Conductivity Meter
$1.000 bidsFree shippingEnding May 24 at 3:47PM PDT6d 21hThermo Scientific ORION 2-Star SERIES PH METER
$312.34Was: $350.00or Best OfferFree shippingMettler Toledo SevenMulti PH/Conductivity Laboratory Dual Function Meter 214B
$250.00Free shippingHM Digital TDS-4 Pocket Size TDS Tester Meter with 0-9990 ppm Measurement Range
$6.95Trending at $9.82eBay determines this price through a machine learned model of the product's sale prices within the last 90 days.or Best Offer$6.95 shippingMilwaukee T76 Waterproof High Range Total Dissolved Solids Pen (TDS)
$38.00Free shippingYSI ProDSS Optical DO Sensor P/N: 626900 NEW and SEALED
$700.00or Best OfferFree shippingAccumet AR50 Dual Channel pH/Ion/Conductivity Meter
$69.00or Best OfferFree shippingHanna Instruments HI 9813-6 PH/EC/TDS/temp. Meter
$70.00or Best Offer$11.40 shippingPortable pH/Conductivity Meter
$238.99 to $392.99Free shippingNew ListingSchott Great Lakes Instruments Model 570P PH Meter 115/120V Panel Mount
$74.99or Best Offer$11.60 shippingMilwaukee MW301 PRO Conductivity Meter
$136.00Free shippingPH Meter, TDS&EC PPM Meter Water Tester for Household Drinking,Pool and Aquarium
$8.99 to $29.99Was: $11.99Free shipping74 soldMilwaukee CD611 Digital Conductivity Pen (EC) for Hydroponics
$29.99Free shippingMilwaukee, Electrode Probe w/ 1m Cable
$88.95Free shippingOmega CDTX-90-2P Conductivity / Resistivity Meter
$160.00Free shippingHach Sens ION156 54650-60 PH/Conductivity/Dissolved Oxygen Multi-Parameter Meter
$89.99or Best OfferFree shippingChlorine Dioxide Test Strips 0-500 ppm - 10pcs - Half width strips
$2.99$3.79 shippingMilwaukee MC410 PRO Total Dissolved solids (TDS) Monitor
$109.00Free shippingMilwaukee, MW101 Automated Portable pH/Temperature Meter
$110.95Free shippingHach DR 850 Colorimeter ~ 4845060 ~ w/ Extras
$499.00or Best OfferFree shippingPH Calibration Buffer (Combo Pack) 4.0, 7.0, 10.0 - Hanna Instruments
$5.75$4.99 shippingBarnant 559-3800 Digi Sense Digital PH/MV/ORP Meter
$125.99or Best OfferFree shipping7 in 1 PH/ORP/EC/TEMP/SALT/S.G/TDS LCD Digital Water Quality Tester PH Meter USA
$23.73Was: $24.98or Best OfferFree shippingLot Vtg pHydrion Paper Roll Dispenser pH Dual Roll & Oakite Iron Testing Papers
$38.00or Best Offer$10.80 shippingMesa Labs Neo-2 Meter (R16)
$250.00$15.00 shippingThermo Scientific Orion Star A211 A-Series Benchtop pH Meter Lab Instrument
$69.99or Best Offer$11.78 shippingMettler Toledo AG FiveGo F3 Conductivity FG3 & Electrode
$386.07or Best OfferFree shipping
Top Rated
- Apera Instruments AI31 PH60 Premium Waterproof pH Pocket Tester100% agree - Good value$86.95 New$55.00 Used