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Thermo Scientific Orion 3 Star pH Benchtop Meter W/Orion 8103BNUWP Probe (7638)W

$ 242 $ 145.19

Thermo Orion Star Series Benchtop pH Meter

$ 76.96 $ 46.17

THERMO ORION 410 A+ PH METER 9 VDC WITH PROBES AND POWER SUPPLY

$ 79.19 $ 47.51

CORROSION PRODUCTS MSES CONSULTANT SRM-100 DIGITAL SOIL pH RESISTIVITY METER

$ 791.99 $ 475.19

HORIBA LAQUAtwin pH-11 Compact pH Meter

$ 105.59 $ 63.35

Thermo Scientific Orion 2 Star Portable pH Meter w/ Probe Needs Calibration

$ 87.99 $ 52.79

eSeasongear SALT-3000 Digital NaCl Salinity ppm Tester Meter for Pool & Koi Pond

$ 21.11 $ 12.66

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

$ 102.08 $ 61.24

Thermo Scientific Orion Star Series PH Conductivity Benchtop Meter

$ 70.39 $ 42.23

Ysi 3252 Plastic Conductivity Cell,0 To 1000Ms/Cm

$ 330 $ 198

Milwaukee MW802 Standard Portable pH / Conductivity / TDS Combination Meter

$ 162.8 $ 97.68

Hach 44600 Conductivity / TDS Meter

$ 260.43 $ 156.26

Omega DP24-PH pH Meter w/Probe

$ 132 $ 79.2

Milwaukee MW302 PRO High Range Conductivity Meter

$ 95.92 $ 57.55

ABB TB82 Conductivity Transmitter TB82EC2010310 4-20MA 13-42 VDC PH

$ 82.71 $ 49.62

Nanolux OG Series 1000 W Grow Ballast Quantity: 5 (no Box Or Cord)

$ 131.99 $ 79.19

Extech pH/ORP Tester 0 to 14 pH SDL100

$ 124.08 $ 74.44

VWR Scientific SympHony SP80PC Multi-parameter pH Meter, Probe Included (4966)

$ 264 $ 158.4

HORIBA LAQUAtwin EC-11 Compact Conductivity Meter

$ 105.59 $ 63.35

Oakton Wd-35641-51 Ph Meter Electrode, Cole Parmer

$ 83.26 $ 49.95

VWR DIGITAL CONDUCTIVITY METER 23226-501 CONDUCTIVITY PROBE 23226-524

$ 374 $ 224.4

NIB HORIBA HE-960HC (W) Conductivity Meter 22078 NEW HE960HC

$ 122.32 $ 73.39

Hach Conductivity Probe 50161 K=1.0

$ 79.19 $ 47.51

HORIBA LAQUAtwin NA-11 Compact Sodium Ion Meter

$ 316.79 $ 190.07

R175046 Hach SensION5 Conductivity Meter

$ 88 $ 52.8

Apera PH850-PW Portable pH Meter for Pure Water with LabSen® 803 Electrode

$ 336.07 $ 201.64

RGBench multi-input analog video analysis test bench by Qwertymodo

$ 76.55 $ 45.93

Thermo Orion Model 210A pH Meter

$ 43.95 $ 26.37

Milwaukee MW802 pH, Conductivity, TDS Combination Meter with Electrode

$ 162.8 $ 97.68

VWR B10C Symphony Benchtop Conductivity Meter

$ 70.39 $ 42.23

YSI 030130 30 handheld conductivity salinity meter with cell and 10-ft cable

$ 308 $ 184.8

Oakton Con5 Handheld Conductivity Meter With Probe

$ 95.62 $ 57.37

Omega DP24-PH Panel Meter

$ 88 $ 52.8

Orion Ammonia Gas Sensing Electrode Model 9512

$ 175.12 $ 105.07

Portable Conductivity Meter Monitor Water Quality Tester Analyzer

$ 91.08 $ 54.64

THERMO Orion 2 Star Benchtop pH Meter, #1111000

$ 236.71 $ 142.02

Fisher Scientific Accumet XL 150 PH/Conductivity/TDS Detector Working Great

$ 439.12 $ 263.47

Apera PH60S-E Replacement Probe for PH60S Spear pH Tester

$ 146.3 $ 87.78

Apera 2301-C Conductivity Electrode (K=1), Range: 0.5 μS/cm to 200 mS/cm, BNC

$ 48.48 $ 29.09

Nanolux OG Series 1000 W Grow Ballast. Comes With Box BUT NO CORD

$ 35.19 $ 21.11

NIB HORIBA FES-510-3/4 4 ELECTRODE CARBON SENSOR 22079 FES510 NEW

$ 527.12 $ 316.27

New-Myron L Three Range DS Meter Model 532M1 With Books & Original Box

$ 110 $ 66

Horiba LAQUA Nitrate NO3- Kit for Crops (NO3-11C)

$ 479.59 $ 287.75

Testo 206-PH2 PH Meter Tester Instrument Probe Head For Liquids 0563 2062

$ 190.96 $ 114.58

ABB TB84 PH Conductivity Analyzer Transmitter

$ 104.72 $ 62.83

NOS inOriginalPkgBox Myron L DS METER 532T1 Three Range withManual, Vintage 1994

$ 286 $ 171.6

86031 AZ Water Quality meter PH Conductivity SalinityDissolvedoxygenTemperate✦Kd

$ 325.16 $ 195.09

YOKOGAWA #EXA PH202S pH/ORP TRANSMITTER (24VDC INPUT, 4-20 mA DC OUTPUT) S19

$ 109.99 $ 65.99

WTW pH 340i pH Meter Hand Held Meter Cracked Screen w/ Plus Probe

$ 175.95 $ 105.57

Apera PH700 Benchtop Lab pH Meter 0.01 Accuracy with 3-in-1 pH/Temp. Electrode

$ 245.78 $ 147.47

Apera EC700 Benchtop Lab Conductivity/Temperature Meter

$ 275.88 $ 165.52

Apera PH800 Laboratory Benchtop pH Meter Kit, 0.01 pH Accuracy, USB output

$ 380.38 $ 228.22

Accumet Conductivity Meter Model 30

$ 175.99 $ 105.59

Milwaukee SM802 2 digit Portable pH/EC/TDS Combination Meter,

$ 162.8 $ 97.68

Oakton 35604-04 Meter Con 6+ Kit - Portable Meter Kit, New!

$ 197.99 $ 118.79

Fisher Accumet AR50 Dual Channel pH mV Ion Conductivity Meter - No Power/ Probes

$ 87.64 $ 52.58

Nalco Portable Waterproof pH/mV/°C Meter 400-C0060.88, -2 to 16 pH, +/-0.01

$ 263.95 $ 158.37

Pyxis SP-710 Handheld Portable Water Multimeter w/pH +ORP Module & Bluetooth Use

$ 1051.59 $ 630.95

Oakton EcoTestr Salt1 Waterproof Pocket Tester Item # WD-35634-12 This economica

$ 70.4 $ 42.24

Nanolux OG Series 1000 W Grow Ballast

$ 43.99 $ 26.39

Portable VWR Conductivity, Total Dissolved Solids Meter with Power Supply

$ 88 $ 52.8

Denver Instrument AP50 pH/Ion/Conductivity Meter + PH Electrode 300735.1

$ 149.59 $ 89.75

**NEW** Oakton WD-35414-00 PC 2700 pH/Con/TDS Desktop Meter with Electrode Stand

$ 882.59 $ 529.55

Hanna Instruments pH 211 Microprocessor pH Meter with power source and probes

$ 174.23 $ 104.53

Omega CDH-80MS Conductivity Meter

$ 66 $ 39.6

Advantage Controls - Han Tron Water Tester

$ 87.12 $ 52.27

HORIBA LAQUAtwin K-11: POTASSIUM ION (K+) METER

$ 316.8 $ 190.08

Yellow Springs Instrument YSI 3253 Glass Dip Conductivity Cell - K=1.0/cm Probe

$ 35.15 $ 21.09

Denver Instrument 225 pH-ISE Meter in good used condition

$ 175.95 $ 105.57

NIB HORIBA FES-510-3/4-I 4 ELECTRODE CARBON SENSOR 22079 FES510 NEW

$ 527.12 $ 316.27

Thermo Orion Model 410 A+ pH Meter

$ 87.99 $ 52.79

Ysi 3256 Conductivity Cell, K=0.1/cm

$ 286 $ 171.6

Supmea SUP-TDS210 Conductivity Meter 220V RS485 0-20000us W/ Probe TDS-6012 NEW

$ 219.99 $ 131.99

Apera F501-S All-in-one Fluoride Ion Electrode, Replacement Electrode

$ 113.69 $ 68.21

YSI 6600 V2 Multiparameter Water Quality Sonde Environmental Systems

$ 308 $ 184.8

Hach H160 PH Meter and Tester

$ 87.12 $ 52.27

Apera EC950 Benchtop Conductivity/TDS/salinity Meter Kit with TestBench

$ 462.3 $ 277.38

Jenco Instruments 608 Digital pH Meter w Case, Probe, pH Solutions, Pwr Adapter

$ 75.23 $ 45.14

APERA LabSen 753 Titanium-body Spear pH/Temp. Electrode for Food Samples

$ 209 $ 125.4

VWR SympHony SB70P Portable Bench Top pH Meter

$ 87.99 $ 52.79

Nalco Portable Waterproof Conductivity Meter 400-C0050.88, 0-2000 uS 0-200 mS

$ 175.95 $ 105.57

Apera PC60 Premium 5-in-1 Waterproof pH/EC/TDS/Salinity/Temp. Pocket Tester Kit

$ 137.5 $ 82.5

Mettler Toledo Education Line EL30 Conductivity Meter

$ 98.96 $ 59.37

Thermo Scientific Orion Star A Series A111 pH Meter Pre-owned Please See Details

$ 263.12 $ 157.87

Rosemount Endurance Conductivity Cell 0.01/cm Screw-In Sensor T56 Turbidimeter

$ 263.12 $ 157.87

850086 Water Quality Meter pH Kit

$ 232.96 $ 139.77

ECO Testr EC LOW Green Pocket Conductivity Tester

$ 26.39 $ 15.83

Milwaukee MW301 PRO Conductivity Meter

$ 96.79 $ 58.07

Apera Premium Series EC60 EC/TDS/Salinity Waterproof Conductivity Pocket Tester

$ 85.05 $ 51.03

vwr 11388-386 symphony electrode stand [4*Y-8]

$ 88 $ 52.8

Apera PH400 Portable pH Meter Kit, 0.01 pH Accuracy, 0-14.00 pH Measuring Range

$ 249.96 $ 149.97

Apera PC820 Precision Benchtop pH/Conductivity Multiparameter Meter Kit

$ 831.82 $ 499.09

Thermo Orion 135A Advanced Conductivity, Salinity, TDS, Temperature Meter

$ 242 $ 145.19

GF SIGNET 387502P PH/ORP TRANSMITTER (260-3)

$ 426.8 $ 256.08

Apera PH60 Premium Waterproof pH Tester for general water solutions

$ 84.26 $ 50.55

Mettler Toledo SevenExcellence Multiparameter Touch Panel. pH Meter

$ 968 $ 580.79

Milwaukee BEM401 Total Dissolved Solids (TDS) Meter

$ 99.44 $ 59.66

General Co502 Conductivity Meter,Ec Range 10-9990Us/Cm

$ 46.19 $ 27.71

Mituwa Digital PH Controller

$ 79.2 $ 47.52

Lab Conductivity Probe

$ 35.2 $ 21.12