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YSI 605202 Galvanic DO Sensor,Instant On

$ 194.04 $ 116.42

Oakton EcoTestr TDS1 Waterproof Pocket Tester Item # WD-35634-08 This economical

$ 70.4 $ 42.24

APERA LabSen 213 Glass-body pH/Temp. Electrode for General Water Solutions

$ 111.18 $ 66.71

OAKTON pH Conductivity/C/F Meter PC300 + 3 Standard Solutions

$ 114.4 $ 68.64

Apera Instruments Premium Series EC8500 Portable Handheld Conductivity Meter Kit

$ 382.88 $ 229.73

Radiometer Copenhagen Conductivity Meter Glass Cell Electrode CDC 314 for CDM 83

$ 87.99 $ 52.79

Apera Instruments Premium Series PC8500 Portable pH/Conductivity Meter Kit

$ 617.8 $ 370.68

Ohaus St10c-C Conductivity Meter,0.1 Us/Cm

$ 61.16 $ 36.69

APERA LabSen 243-6 pH/Temp. Electrode for Test Tubes and Small Samples (>0.2mL)

$ 164.69 $ 98.81

VWR Symphony B30PCI BenchTop pH & Conductivity Meter w power supply: 89231-696

$ 316.8 $ 190.08

Apera PH850-HF Portable pH Meter for Solutions containing Strong Acid

$ 308.48 $ 185.09

Portable Pen Type Digital PH Meter CT-6020A with PH Electrode

$ 54.56 $ 32.73

Ysi Odo-1 Cable With Odo Probe,1 Meter

$ 651.2 $ 390.72

CM-230 Industrial Online Conductivity tester monitor Automatic ranging zeroing Y

$ 40.47 $ 24.28

YSI Pro30 Handheld Field Conductivity Meter salinity TDS Temperature Tester

$ 65.12 $ 39.07

Hach Pocket Pro+ Multi 2

$ 44 $ 26.4

AZ86555 Bench Top Water Quality Meter with Printer pH/ORP/Cond./TDS/Salinity

$ 461.12 $ 276.67

Oakton EcoTestr EC1 Waterproof Pocket Tester Item # WD-35634-06 This economical,

$ 70.4 $ 42.24

Thermo Scientific Orion Star A111 pH Meter For Parts / Repair

$ 65.12 $ 39.07

Myron L DS Conductivity Meter, 0-10000 ppm (512T10)

$ 166.36 $ 99.81

METTLER TOLEDO 52002009 INPRO 7108 CONDUCTIVITY SENSOR

$ 263.99 $ 158.39

APERA LabSen241-3 Glass Micro pH Electrode 3 to 4mm in diameter for Samples>30µl

$ 184.75 $ 110.85

WTW PH/OXI 340i / Set p/H Dissolved Oxygen Conductivity Measuring Instrument

$ 782.21 $ 469.32

HACH COMPANY PH57-SS PROBE UNIT

$ 263.99 $ 158.39

Wireless Bluetooth PH Meter mV Tester Temperature Meter -2 to 20pH

$ 193.6 $ 116.16

Thermo Scientific Orion 4-Star Benchtop pH/ISE Meters

$ 880 $ 528

Milwaukee EC60 EC/TDS/°C Tester Conductivity Meter, 60

$ 48.4 $ 29.04

AGRI-METER™ pDS pH/Conductivity Meter: 0-5 millimhos; 2-12 pH

$ 307.99 $ 184.79

Sper Scientific Handheld Vacuum Meter 840064

$ 70.4 $ 42.24

ORP Electrode Item # WD-35805-15 ORP electrode Double Junction

$ 149.6 $ 89.76

VWR Symphony B10P Benchtop pH Meter Ac with Adapter S/N 18114S0014

$ 236.72 $ 142.03

Thermo Orion 3 Star Benchtop pH Meter - For Parts or Repair

$ 34.21 $ 20.52

Thermo Orion Model 210A pH Meter W/ Accuser Probe MW0

$ 66.88 $ 40.12

Apera Instruments SX620 pH Pen Tester Kit with 0.01Accuracy, Auto. Calibration

$ 75.02 $ 45.01

Rosemount 54EC-01-09-20 Conductivity /Resistivity Analyzer and Controller

$ 396 $ 237.6

Hach 44600 Conductivity / TDS Meter

$ 171.6 $ 102.96

STRANCO SG-700 CHLORINE ANALYZER/CONTROLLER PH/ORP CALIBRATION UNIT

$ 54.56 $ 32.73

PH Meter Industrial Online pH Controller -1 to 15pH 4 to 20mA outputs mV Tester

$ 320.76 $ 192.45

Milwaukee MW100 Portable pH Meter

$ 110.87 $ 66.52

WTW Scholar 425 pH Meter

$ 98.96 $ 59.37

APERA LabSen 371 POM-body Flat pH Electrode for Surface Test, BNC Connector

$ 126.23 $ 75.74

ABB Kent- Taylor 4600 Series 4630/500 pH/Redox & Conductivity Transmitters

$ 857.99 $ 514.79

Thermo Scientific Orion 9512 Ammonia Electrode

$ 139.91 $ 83.94

Drew Industrial DIEP-10 Micromhos EP Meter (H45)

$ 43.99 $ 26.39

WTW pH 340i BNC Handheld PH Meter

$ 791.99 $ 475.19

ORP Electrode Item # WD-35805-13 ORP electrode Single Junction

$ 96.8 $ 58.08

Nanolux OG Series 1000 W Grow Ballast

$ 57.2 $ 34.32

Testo 205 PH Meter Tester measuring instrument probe head for food 0563 2051

$ 192.7 $ 115.62

ROSEMOUNT 54EPHBT-01-09 BROADLEY TECHNOLOGIES MODEL 40 pH/ORP ANALYZER/CONTROL

$ 131.99 $ 79.19

Lutron Conductivity / TDS / PH / Temp Intelligent Digital Meter Handheld Compact

$ 82.65 $ 49.59

ProMinent DCM5 DCM 503 Aquatic Water Quality Chemistry Controller w Sensors

$ 2639.99 $ 1583.99

hach h160 ph meter

$ 413.59 $ 248.15

Fisher Scientific Accumet Research AR15 Benchtop pH Meter with Probe - AS IS

$ 48.35 $ 29.01

Horiba LAQUA Nitrate NO3- Kit for Soil (NO3-11S)

$ 523.59 $ 314.15

Complete NALCO Chemical Co. CONDUCTIVITY METER Model A - Water Field Tester

$ 183.03 $ 109.81

GLI International Model 63 pH Analyzer P63A1N1A1A1NNN

$ 175.95 $ 105.57

Thermo Scientific Orion™ 8172BNWP ROSS™ Sure-Flow™ pH Electrode (NEW)

$ 334.4 $ 200.64

VWR pH Double Junction Glass Combo Electrode, 14231-174

$ 125.83 $ 75.49

Thermo Scientific Orion Star A111 pH Meter

$ 66 $ 39.6

conductivity meter

$ 308 $ 184.8

NEW Leeds & Northrup Company 4905-1-33-009-20-000 4905 Series Conductivity Cell

$ 181.27 $ 108.76

T159074 VWR Symphony SB70P Benchtop pH Meter

$ 88 $ 52.8

Hanna Instruments HI 8510 Panel-Mounted pH Analog Indicator Self Diagnostics[SI]

$ 240.76 $ 144.46

Knick SE630-MS *Conductivity Sensor*

$ 435.6 $ 261.36

Denver Instrument 225 pH-ISE Meter Without Electrode

$ 352 $ 211.2

YSI EC30A CONDUCTIVITY METER, 0.0 μS to 19.90 mS RANGE, DIGITAL, 25JY95, NEW!

$ 113.52 $ 68.11

AZ8306 TDS Water Quality Salinity Analyzer Instrument Water Conductivity Meter

$ 206.8 $ 124.08

APERA LabSen841 Glass-body pH Electrode for Strong Base Solutions, BNC Connector

$ 124.56 $ 74.73

Apera PH8500-WW Portable pH Meter for Wastewater Treatment with LabSen Electrode

$ 352 $ 211.2

Benchtop Lab Conductivity Meter Digital Combo Meter Water Quality Analyzer

$ 142.56 $ 85.53

Extech PH60: Waterproof pH Pen with Temperature

$ 58.07 $ 34.84

Hanna Instrument pH 210 Microprocessor pH Meter Lab no charger sold As is

$ 132 $ 79.2

Myron L Company Model 512M5 Single Range DS Meter Nice Condition Made in USA

$ 21.99 $ 13.19

Foxboro 875PH-D1U-A Communication Series pH/ORP 0-14 PH Controller

$ 726 $ 435.6

RADIOMETER COPENHAGEN CDM 83 CONDUCTIVITY METER GLASS CELL ELECTRODE CDC 314

$ 83.58 $ 50.14

APERA LabSen 763 Titanium-body Blade Spear pH/Temp. Electrode for Meats

$ 318.51 $ 191.1

Apera EC400S Portable Conductivity/TDS/Salinity/Resistivity Meter Kit AI422 NEW

$ 381.04 $ 228.62

Denver Instrument Model 225 pH - ISE Meter

$ 308 $ 184.8

AZ AZ9861 Ph Meter Water Quality Analyzer Electronic Data Logger With Printer

$ 211.19 $ 126.71

VWR Scientific 8000 pH Temperature Meter w Beckman 511080 Probe - Parts Only

$ 24.2 $ 14.52

Apera Instruments 2310-C PVC-Body High Range Conductivity Electrode

$ 74.4 $ 44.64

Hagan Conductivity Meter *Model BW2*

$ 3.51 $ 2.1

APERA LabSen 331 POM-body pH Electrode for Wastewater, Emulsions, Suspensions

$ 66.88 $ 40.12

Corning 475110 Medical & Scientific PH Meter w/ Probe

$ 42.24 $ 25.34

Drew Marine 0173054 Conductivity Meter Ashland Water Treatment testing

$ 70.4 $ 42.24

Apera PC400 Portable pH/Conductivity/TDS Meter Kit - AI413

$ 427.68 $ 256.6

Apera Instruments PH60F-DE Replacement Flat pH Probe for ZenTet pH Testers

$ 60.19 $ 36.11

Hach HQ40d Portable Multi-Paramater Meter, phC101, Lange PHC101 Electrode + Case

$ 1847.99 $ 1108.79

HBD5-MS2100Wa Portable Food Water Activity Tester Meter

$ 1574.32 $ 944.59

Omega CDH-80MS Conductivity Meter Pocket Pal (16834,35,36 B44)

$ 70.35 $ 42.21

Apera 301Pt-S ORP Combination Electrode, 8pin Connector

$ 69.38 $ 41.63

New Myron L DS METER 532 Total Dissolved Solids Meter

$ 246.4 $ 147.84

TDS - Digital Water (H2O) 'Total Dissolved Solids' Tester / Meter NEW 60% off!

$ 5.26 $ 3.15

WA-60A Food Water Activity Meter Measuring Range 0~1.0aw

$ 482.68 $ 289.6

HM DIGITAL TDS METER Water Quality Tester TOTAL DISOLVED SOLIDS + TEMP TDS-4TM

$ 8.78 $ 5.26

Bluelab Combo Plus Meter - Probe Included

$ 307.12 $ 184.27

Oakton PCTS Testr 5 Waterproof Pocket Tester Item # WD-35634-60 PCTSTestr

$ 149.6 $ 89.76

Water Quality Monitor PH Conductivity TDS Salinity Resistivity DO Temp Tester

$ 712.8 $ 427.67

SENSOREX QUALITY PH ELECTRODE

$ 153.99 $ 92.39

Hanna pH Meter Digital Checker

$ 33.44 $ 20.06