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Oakton WD-35618-30, pH 450 Portable Waterproof pH Meter with Probe

$ 534.16 $ 320.49

Oakton WD-35634-14, pHTestr 10 BNC Waterproof pH Meter

$ 244.11 $ 146.46

Oakton WD-35604-40, SALT 6+ Meter

$ 310.81 $ 186.48

IQ Scientific Instrument IQ240 Portable PH Meter w/ Power Supply

$ 17.55 $ 10.53

Apera Instruments LLC-AI3717 ORP60-DA ORP Probe for ZenTest 60-Z Smart Pocket...

$ 85.67 $ 51.4

Oakton Waterproof pH/Conductivity/C meter   pH/CON 10 series

$ 267.52 $ 160.51

Rosemount Analytical OXMT-A-FF-11 Dissolved Oxygen pH/ORP Transmitter w Warranty

$ 1350.36 $ 810.21

Oakton 35604-04 Meter Con 6+ Kit - Portable Meter Kit with Calibration Fluids

$ 154 $ 92.4

2-HARDNESS TESTING DIAMONDS

$ 61.6 $ 36.96

Rosemount Analytical OXMT-A-FF-11 Dissolved Oxygen pH/ORP Transmitter w Warranty

$ 484 $ 290.39

Rosemount Analytical OXMT-P-FF-11 Dissolved Oxygen pH/ORP Transmitter w Warranty

$ 484 $ 290.39

Rosemount Analytical OXMT-A-FF-11 Dissolved Oxygen pH/ORP Transmitter w Warranty

$ 484 $ 290.39

Rosemount Analytical OXMT-A-FF-11 Dissolved Oxygen pH/ORP Transmitter w Warranty

$ 484 $ 290.39

Symphony - 14002-860 pH Electrode - Epoxy - Gel 3in1 - FREE SHIPPING

$ 79.19 $ 47.51

Sargent Welch pH8001 Bench pH Meter 8519sw with Electrode

$ 31.66 $ 18.99

pH/ORP Meters. GLI PRO-P3 Lot of two

$ 26.39 $ 15.83

Oakton WD-35805-01, pH Electrode, Double-Junction

$ 145.64 $ 87.38

Oakton WD-35804-06, Spear-Tip Single-Junction pH Electrode

$ 221.84 $ 133.1

Mettler Toledo SevenGo Portable PH Meter Model SG2 51302520 with Warranty

$ 572.83 $ 343.7

Mettler Toledo SevenGo Pro Dissolved Oxygen Meter SG6 51302560 with Warranty

$ 572.83 $ 343.7

Apera Instruments PC60-E Probe for PC60 Multi-Parameter Tester

$ 71.07 $ 42.64

PHS-3BW Lab Benchtop pH mV Test Meter With Automatic Temperature Compensation

$ 299.2 $ 179.52

Apera PC60-E Replacement Probe for PC60 Pocket Multi-Parameter Tester AI1211

$ 70.4 $ 42.24

Apera PH60-DE Replacement Probe for PH60-Z Smart Pocket pH Tester AI3711-E

$ 48.4 $ 29.04

Oakton WD-35808-89, Semi-Dome Double-Junction pH Electrode

$ 130.85 $ 78.51

Oakton WD-35653-09, Conductivity Calibration Pouches

$ 165.52 $ 99.31

Thermo Scientific No Cal pH Electrode 5107nc (Dd) (e22)

$ 165 $ 99

-AI501 PH700 Benchtop Lab pH Meter, 0.01 pH Accuracy, 1-3 Points Auto

$ 279.35 $ 167.61

Apera Instruments AI422 EC400S Portable EC (Conductivity)/TDS/Salinity/Resist...

$ 413.96 $ 248.38

1PCS Portable Pen Digital TDS Meter Filter Measuring Water Quality Purity Tester

$ 2.24 $ 1.34

CORNING PINNACLE PH METER W/ ELECTRODE MV MEASUREMENTS 530

$ 79.19 $ 47.51

5 in 1 T-/EC/SALT/S.G./Temperature Meter Water Quality Monitor Tester E7A8

$ 16.86 $ 10.11

5 in 1 /EC/SALT/S.G./Temperature Meter Water Quality Monitor Tester F0L0

$ 17.7 $ 10.62

Apera PH8500-BS Portable Meat pH Meter Kit with LanSen Anti-Contamination Blade

$ 602.79 $ 361.67

HANNA HI1297D PH/ORP ELECTRODE, HI 1297D

$ 220 $ 132

PH METER LCD Digital High Accuracy 0.01 Pocket Size PH Tester Batteries Included

$ 6.77 $ 4.06

Sper Scientific Handheld Vacuum Meter

$ 355.66 $ 213.39

Scientific Instruments Process Lab IQ500 pH Meter Controller/ Analyzer

$ 66 $ 39.6

Digital Pocket PH Meter Water Tester Pen LCD Monitor Pool Aquarium Laboratory uk

$ 28.77 $ 17.26

6-in-1 Wifi Digital Water Quality Tester Water Analyzer PH/TDS/EC/SG/Salinity

$ 73.03 $ 43.81

WTW PH 3150i HANDHELD METERS

$ 87.12 $ 52.27

6 in 1 Wifi Digital Water Quality Tester Water Analyzer PH/TDS/EC/SG/Salinity

$ 64.27 $ 38.56

Industrial PH/ORP Control Meter Monitor Detection Sensor +5m Composite Electrode

$ 140.78 $ 84.46

NEW Portable Pen Digital TDS Meter Filter Measuring Water Quality Purity Tester

$ 2.5 $ 1.5

DiST®3 Waterproof EC Tester (0-2000 µS/cm) ( HI98303 )

$ 70.39 $ 42.23

Lab Safety Supply 6CDP5 25ml Grade A Burrette PTFE (6 Pcs)

$ 71.28 $ 42.76

YSI EcoSense EC300 w/probe, case, Conductivity, Salinity, Temp Meter 0 NEW

$ 307.99 $ 184.79

YSI Pro20 Dissolved Oxygen Meter,0 to 50 mg/L

$ 672.61 $ 403.56