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VWR SB90M5 BENCHTOP SYMPHONY METER WITH POWER SUPPLY

$ 215.6 $ 129.35

Testo 206-PH1

$ 88 $ 52.8

Mettler Toledo S20 SevenEasy Temp & pH Meter + Probe Lab

$ 316.93 $ 190.15

Alpha 200 pH & Conductivity Meter H+ Lab Laboratory With Probe

$ 188.69 $ 113.21

VWR Traceable Conductivity 23226-501 Meter Automatic Temperature Compensation

$ 113.52 $ 68.11

Oakton WD-35414-00 PC 2700 pH/Con/TDS Meter w/Electrode, Probe, Stand

$ 1038.62 $ 623.17

Aquarium PH meter thermometer PH tester Smart WIFI water quality monitor

$ 96.79 $ 58.07

Lab Benchtop pH Conductivity TDS Temperature Meter USB Interface 20.000pH

$ 459.36 $ 275.61

VWR SB90M5 SYMPHONY PH METER

$ 130.68 $ 78.4

Apera Instruments LLC-AI314 Premium Series EC60 Waterproof Conductivity Pocke...

$ 103.84 $ 62.3

Portable VWR Conductivity, Total Dissolved Solids Meter, with Probe and Battery

$ 13.19 $ 7.91

Thermo Scientific pH 3-in-1 Electrode 9147BN with ATC

$ 78.4 $ 47.04

OAKTON WD-35413-00 PH/CON 700 MTR W/PH-COND-TEMP PRB

$ 1187.95 $ 712.77

Oakton Instruments Waterproof TDS Tester Pure 35661-20 Meter

$ 3.33 $ 2

Fisher Scientific Accumet pH Meter 25

$ 44 $ 26.4

Lutron Conductivity Meter Type YK-2001PH with YK-200PCT Probe.

$ 126.72 $ 76.03

TDS Meter for Best Water Quality

$ 1.07 $ 0.64

IQ Scientific Instruments IQ240 Potable PH Meter w/ Thermometer and Power Supply

$ 70.48 $ 42.29

Extech pH/ORP Tester 0 to 14 pH SDL100 USED

$ 87.99 $ 52.79

IQ Scientific Instruments IQ240 Potable PH Meter w/ Thermometer and Power Supply

$ 70.48 $ 42.29

IQ Scientific Instruments IQ240 Potable PH Meter w/ Thermometer and Power Supply

$ 70.48 $ 42.29

FiveGo F3 Portable Hand held Conductivity Meter with 30266974 LE703-IP67 probe

$ 105.6 $ 63.35

Corning Glass Conductivity Probe 0–500 µS 476502

$ 39.6 $ 23.76

TBI Bailey Two Wire pH Transmitter & Sensor TB515 USED

$ 176 $ 105.6

WTW pH/Cond 340i Handheld Meter

$ 578.14 $ 346.88

Horiba Twin pH Compact pH Meter B-211 Used

$ 69.52 $ 41.71

Jenco 3671 pH/ORP Controller 2 Digit 110VAC/220VAC USED

$ 216.47 $ 129.88

Oakton WD-35408-02 CON 600 Conductivity/TDS Meter Only

$ 593.45 $ 356.07

OMEGA CDH-35 WATER-RESISTANT CONDUCTIVITY METER

$ 67.32 $ 40.39

Oakton WD-35408-03 CON 600 Conductivity/TDS Meter Only with NIST

$ 713.39 $ 428.03

Oakton WD-35414-20 PC 2700 pH/Con/TDS Meter w/Electrode Stand

$ 883.27 $ 529.96

Oakton WD-35607-34 CON 150 Conductivity/TDS Meter and Probe, NIST

$ 501.68 $ 301.01

Apera Instruments ORP60-E Replacement ORP Probe for ORP60 Pocket ORP Tester

$ 50.16 $ 30.09

Apera ORP60-DA Replacement ORP Probe for ZenTest 60-Z Smart Pocket pH Testers

$ 57.68 $ 34.61

AZ8551 High Precision Water Quality ORP PH Tester PH Range 0~14PH

$ 315.04 $ 189.02

2 in 1 Digital pH and ORP Controller with Separate Relays Repleaceable Electr...

$ 132.43 $ 79.45

Oakton pH Meter Testr 30, Item # WD-35634-30 Waterproof

$ 95.92 $ 57.55

Corning pH Meter 130, Digital Readout

$ 44 $ 26.4

Lutron YK-200PCD Conductivity Meter for YK-2001PH

$ 114.39 $ 68.63

HACH HQ440D Laboratory Dual Input, Multi-Parameter Meter

$ 665.28 $ 399.16

New Horiba pH Meter D-21 D21 D-21E Meter Only

$ 99 $ 59.4

New Aqua Metrix AS-M01P2-020 Water Analytics Conductivity Probe AS/AM Shark

$ 74.79 $ 44.87

Lot of 2 Thornton 200CR 6222-1 Conductivity Meters AS IS Power On

$ 131.96 $ 79.17

Oakton ORPTestr 5 Waterproof Pocket Tester Item # WD-35634-54 The pocket-sized O

$ 96.8 $ 58.08

Oakton WD-35408-00 Eutech CON 600 Conductivity/TDS meter with Probe

$ 746.84 $ 448.1

pH 150 Meter ONLY Item # WD-35614-32 Oakton pH 150 Meter (METER ONLY), Measures

$ 396 $ 237.6

GLI International Model 63 pH Analyzer P63A1N1A1A1NNN

$ 105.6 $ 63.35

Apera Instruments MP500 Temperature Probe, NTC 30 kohm thermisto, RCA, 3ft cable

$ 47.65 $ 28.59

KEM AT 610 Automatic Potentiometric Titrator

$ 1232 $ 739.2

Brand New LUTRON BPH-231 Bench Type pH Meter Tester Data Logger

$ 450.56 $ 270.33

Oakton WD-35604-01 Eutech CON 6+ Conductivity Meter with Probe & NIST

$ 388.65 $ 233.19

Oakton WD-35414-01 PC 2700 pH/Con/TDS Meter, Software, Probe, NIST

$ 1306.73 $ 784.04

Apera EC800 Laboratory Benchtop Conductivity Meter Kit AI522

$ 500.72 $ 300.43

Apera PH8500-BR Portable pH Meter for Beverage Making with LabSen pH Electrode

$ 378.4 $ 227.04

Apera EC700 Benchtop Conductivity Meter Kit with 2301T-F Conductivity Electrode

$ 290.39 $ 174.23

Orion Research Model 211 Digital PH Meter With Prob, a power adapter+Carry Case

$ 156.64 $ 93.98

Apera EC910 Benchtop Conductivity Meter Kit Automatic Calibration Self-diagnosis

$ 396.88 $ 238.12

Myron L Company Model STIK25 5-5000 micromhos Probe Gauge? NEW

$ 132 $ 79.2

THERMO SCIENTIFIC ORION 1803 STEAM SAMPLE CONDITIONER , N/NIB! MAKE OFFER!

$ 2199.99 $ 1319.99

Digital Ph Meter Aquarium Pool Hydroponic Water Monitor 0-9999 PPM Tester

$ 6.59 $ 3.95

Oakton PCTS Testr 5 Waterproof Pocket Tester PCTS5

$ 84.39 $ 50.63

Apera Instruments LLC-AI312 Apera Instruments Premium Series PH60F Flat pH Po...

$ 114.54 $ 68.72

Yokogawa SC42-SP34 Plug-In Conductivity Cell Sensor CC 0.00996/cm 150C/230F Max

$ 105.6 $ 63.35

Lab Portable pH Meter mV Tester With Temperature Display 0~14.00pH Range

$ 149.59 $ 89.75

Hach Pocket Pro+ Multi 2

$ 25.52 $ 15.31

Fisher Scientific Accumet XL150 Benchtop pH Meter - NEW PROBE

$ 145.19 $ 87.11

ysi incorporated model 30 salinity conductivity temperature

$ 87.99 $ 52.79

Reed Instruments R3000SD pH ORP Meter w/ SD Card Slot for Data Logging

$ 157.52 $ 94.51

850086 Water Quality Meter pH Kit

$ 248.27 $ 148.96

HM Digital TDS Temp HMD Water Quality Tester Meter

$ 7.04 $ 4.22

HMD TDS Tester Digital Water Tester

$ 4.18 $ 2.5

Hach Sension 5 Conductivity Meter 5180060 Sension5

$ 219.99 $ 131.99

Horiba 3200689164 LAQUAtwin NO3-11S Nitrate Ion Meter Soil Analysis Kit

$ 523.6 $ 314.16

Horiba LAQUAtwin 3999960125 Model EC-11 Compact Conductivity Meter

$ 113.51 $ 68.1

Swan Analytical SS pH SI Electrode Part Number A-87.110.200

$ 201.52 $ 120.91

iSpring TDS2 2-Button Digital Water Quality TDS Test Meter with Backlit LCD

$ 11.61 $ 6.96

Horiba 3200459867 Model S022 Replacement Sensor for LAQUAtwin Na-11

$ 132 $ 79.2

Portable Digital Display Conductivity Meter Water Quality Tester Analyzer

$ 145.46 $ 87.27

Milwaukee MW302 Conductivity Meter, Automatic Temperature Compensation

$ 95.92 $ 57.55

Aquaculture Water Quality Dissolved Oxygen Tester PH/Conductivity/Sality Meter

$ 371.36 $ 222.81

Apera PH60 Premium Waterproof pH Tester for general water solutions

$ 85.08 $ 51.05

OHAUS ST20C-A Conductivity Meter,Dual Line LCD

$ 79.12 $ 47.47

OHAUS ST10C-C Conductivity Meter,0.1 uS/cm

$ 53.92 $ 32.35

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

$ 579.63 $ 347.78

Horiba LAQUAtwin 3999960128 Model Salt-11 Compact Salt Meter

$ 132 $ 79.2

Horiba 3200689163 LAQUAtwin NO3-11C Nitrate Ion Meter Crop Analysis Kit

$ 479.6 $ 287.76

OAKTON PH11 pH/mV/TEMPERATUE METER 35614-80 pH11 METER & 35811-71 PROBE & CASE &

$ 175.99 $ 105.59

Horiba 3200459868 Model S030 Replacement Sensor for LAQUAtwin K-11

$ 132 $ 79.2

Horiba LAQUAtwin 3999960126 Model EC-22 Compact Conductivity Meter

$ 123.2 $ 73.92

Environmental Monitoring Systems 6920 Multiparameter Water Quality Sonde

$ 870.32 $ 522.19

Thermo Triode 9107BN - Fast Shipping

$ 43.99 $ 26.39

Eutech Instruments Oakton Waterproof pHTestr 20 Pocket Pocket Tester with Case

$ 15.4 $ 9.24

Traceable 4281 Ph Standard,Cert. Ref Material,Crm 7.000

$ 21.11 $ 12.66

Oakton 35634-45 Orp Meter,Lcd Display,Waterproof

$ 184.92 $ 110.95

Ohaus St10c-A Conductivity Meter,1 Line Lcd

$ 52.8 $ 31.67

Blue Digital TDS & EC Meter Tester EC-1 Water Quality Test Pen For Aquarium Pool

$ 4.39 $ 2.63

Orion ROSS Sure-Flow pH Electrode with Sure-flow junction, BNC connector

$ 220 $ 132

Water Quality Tester Meter TDS Meter 3

$ 12.21 $ 7.32

Horiba LAQUAtwin 3999960122 Model pH-11 Compact pH Meter

$ 113.52 $ 68.11

Thermo Scientific Orion 3 Star pH Benchtop Conductivity Meter USED (7554) W

$ 102.08 $ 61.24