pH, Conductivity & TDS Meters – Listings, Prices & Brands

Oakton PCD650 600 Series Waterproof Portable pH Conductivity TDS Meter Kit
$500.00#Ad Buy Now or Best Offer
HACH 09240=C=0310 / 0320 Reference Electrode For 9245-9240 Sodium analyzer ⭐NEW⭐
$247.77#Ad Buy Now
Hach DR 900 Portable Multiparameter Portable Colorimeter
$235.00#Ad Buy Now or Best Offer
Hach DR/850 & DR/890 Colorimeter Lot – Water Testing Meters – Working/one Parts
$199.00#Ad Buy Now or Best Offer
YSI 3000 T-L-C Water Meter P/R
$60.00#Ad Buy Now or Best Offer
LaMotte WaterLink Spin Touch DW 3585 + HM PH-200 + HM COM-100 + LaMotte 4447-01
$1,200.00#Ad Buy Now or Best Offer
MYRON L CO 6PIIFCE-BD / 6PIIFCEBD BRAND NEW 6P ULTRAMETER II FCE bluDock ENABLED
$1,157.10#Ad Buy Now or Best Offer
2x Hach Pocket Colorimeter II 5953000 With Case & Accessories Pre-Owned
$250.00#Ad Buy Now or Best Offer
YSI 650 MDS Handheld Data Logger Display 600XL Multi-Parameter Sonde & Charger
$255.00#Ad Buy Now or Best Offer
Benchtop pH Meter Kit w/ Electrode, 1-2Points Auto Calibration, 0.01 pH Accuracy
$129.99#Ad Buy Now
Thermo Scientific Orion 2 Star pH Benchtop Meter Digital Lab Analyzer
$60.89#Ad Buy Now or Best Offer
eSeasongear SALT-3000 Meter Digital NaCl Salinity ppm Tester for Pool & Koi Pond
$19.99#Ad Buy Now
Myron L Company ULTRAPEN PT1 Conductivity TDS Salinity Temp Pen Cole-Parmer NOB
$179.99#Ad Buy Now or Best Offer
YSI ProPlus Instrument + Pro 1020 ISE-Do-T
$550.00#Ad Buy Now or Best Offer
Thermo Scientific pH Electrode Probes w/ Storage Solution Bottles (2)
$250.00#Ad Buy Now or Best Offer
Oakton pH 5+ Handheld Meter without Probes 35613-52 - Used
$52.50#Ad Buy Now or Best Offer
YSI Model 60 pH & Temperature Meter
$149.95#Ad Buy Now or Best Offer
Lot of 2 YSI Model 60 pH & Temperature Meter
$239.95#Ad Buy Now or Best Offer
SALE 067 Body pH TEST Tape Paper Roll 4 Saliva & Urine Acid 5.5 Alkaline Health
$25.99#Ad Buy Now
Pyxis SP-900 Portable Water Analyzer
$600.00#Ad Buy Now or Best Offer
Good condition untested Hach Model CL-17 Chlorine Analyzer #5440060 Parts/Repair
$99.99#Ad Auction · No bids
Extech ExStik PH100 Waterproof pH Meter NEW open Box
$89.99#Ad Buy Now or Best Offer
Hanna DiST 5 / 6 EC/TDS/Temp Tester 0-3999 µS/cm & 2000 ppm HI98312 HI98311
$90.00#Ad Buy Now or Best Offer
Hanna Instruments Pure Water Tester HI98308 EC of Distilled or Demineralized H2O
$74.50#Ad Buy Now or Best Offer
HACH 9531000 POCKET PRO+ PH TESTER **with Buffer 7 Packet
$50.00#Ad Buy Now
Knick MKS - Cond 028 8922821 /2114 Conductivity Amplifier Module
$74.50#Ad Buy Now or Best Offer
Portable TDS Meter Digital Tester Water Conductivity Temperature Test Pen
$6.39#Ad Buy Now or Best Offer
MYRON L CO 6PIIFCE / BRAND NEW 6P ULTRAMETER II
$450.00#Ad Buy Now or Best Offer
NEW 2019 HONEYWELL UDA PH INPUT BOARD SPARE PART NO. 51453313-501
$422.75#Ad Buy Now or Best Offer
2 New Endress + Hauser pH & Do Probes CPS77E-11X0/o & CLS82E
$400.00#Ad Buy Now or Best Offer
Hach DPD Total Chlorine Reagent Dispenser Swiftest
$99.00#Ad Buy Now or Best Offer
Hanna Instruments pH/EC/TDS HI98311
$98.00#Ad Buy Now or Best Offer
Hach DPD Free Chlorine Reagent Dispenser Swiftest 28023-00 Used
$49.99#Ad Buy Now or Best Offer
Hach 44600 Conductivity/TDS Meter
$29.00#Ad Buy Now
Conductivity Meter - Used (Near Mint)
$75.00#Ad Buy Now or Best Offer
Pfaudler Werke - pH / ORP Probe Cable - 5 meters
$42.75#Ad Buy Now
Milwaukee EC60 EC/TDS/°C Tester Conductivity Meter, 60
$55.00#Ad Buy Now
Pyxis Water analyzer Model SP 710B
$200.00#Ad Buy Now or Best Offer
NEW SEALED 2017 HONEYWELL UDA PH INPUT BOARD SPARE PART NO. 51453313-501
$422.75#Ad Buy Now or Best Offer
Thermo Scientific Orion Star A222 Conductivity Meter w/ Accessories
$200.00#Ad Buy Now or Best Offer
THERMO SCIENTIFIC ORION 9512HPBNWP Ammonia Electrode
$99.95#Ad Buy Now
Hach CL17sc Colorimeter
$400.00#Ad Buy Now
Hanna HI9142 Portable Dissolved Oxygen Meter w/ Probe and Carrying Case WORKING
$249.99#Ad Buy Now or Best Offer
THERMO SCIENTIFIC ORION 3 STAR PH PORTABLE ~ PARTS - I
$85.71#Ad Buy Now or Best Offer
Myron L Company Series 760, Model 762-4-03 w/ Sensor Cell Probe
$159.99#Ad Buy Now
Nice tested working HACH HQ30D flexi PORTABLE MULTI-PROBE METER & case cover
$64.99#Ad Auction · No bids
EXTECH ph210 Compact pH/ORP/Temperature Meter
$79.25#Ad Buy Now
6-in-1 Multifunction PH/EC/TDS/SALT/Temp Water Quality Tester Wifi APP Control
$75.99#Ad Buy Now
Apera AI3711 PH60-Z Bluetooth Smart pH Tester ZenTest App Datalogger Waterproof
$142.00#Ad Buy Now
Digital pH Meter PPM,TDS&EC Water Quality Tester,±0.01pH for Home Lab WHOLE SALE
$139.99#Ad Buy Now
Brand New PHES-112-SE PH Electrode PHES 112 SE 150702 for ProMinent
$270.00#Ad Buy Now or Best Offer
Extech PH100: ExStik 0.00 to 14.00-PH Waterproof Meter
$124.00#Ad Buy Now
Hanna HI9813 GroChek pH Conductivity & TDS Measure Meter Tester W/ Probe NIB
$87.99#Ad Buy Now
Omega PHE-7353-15 Industrial pH Electrode Sensor 3/4" MNPT Submersible Probe NEW
$199.00#Ad Buy Now
Mettler Toledo SevenEasy Digital pH Meter Tested
$40.99#Ad Buy Now
Hanna Instruments Groline HI981420 pH/EC/TDS/Temperature Monitor NEW
$230.00#Ad Buy Now or Best Offer
ORP 201H Probe, ORP Redox Electrode, Oxidation Reduction Potential ORP Meter for
$29.99#Ad Buy Now
Ysi Ec30a Conductivity Meter
$109.99#Ad Buy Now
0-9990ppm Tds Meter Digital Water Quality Tester Testing Kits for Drinking Water
$5.00#Ad Buy Now
Olympus Conductivity Standard Calibration 30.45% 39.65% 59.06% Nondestructive
$360.87#Ad Buy Now or Best Offer
Hach SC100 General Purpose Analyzer Controller, MPN LXV401.52.00002
$80.00#Ad Buy Now or Best Offer
Hach MP-6 pH, ORP, TDS, Conductivity, Resistivity, Temperature Meter and Manuals
$450.00#Ad Buy Now or Best Offer
Hach HQ411D Laboratory Single Input, pH/mV Meter - pH and ORP. No AC Adapter
$299.99#Ad Buy Now or Best Offer
YSI 600XL Multi-Parameter Sonde & 650 MDS Handheld Data Logger Display
$599.97#Ad Buy Now or Best Offer
Thermo Scientific Orion Star A211 Benchtop pH Meter | + Stirrer! | Fully Working
$450.00#Ad Buy Now or Best Offer
Thermo Scientific Orion Star A211 pH Meter with pH Sensor YY1-15170 + Probe Arm
$259.95#Ad Buy Now or Best Offer
Rosemount Analytical 0396PVP-10-55-41 pH Probe RTD PT100
$249.99#Ad Buy Now or Best Offer
YSI Pro20 Dissolved Oxygen Meter, 0 to 50 mg/L - New (Open Box, Instrument Only)
$760.00#Ad Buy Now or Best Offer
Hach IntelliCAL PHC201 Gel Filled pH Electrode probe, 1 m Cable
$125.00#Ad Buy Now or Best Offer
Corning 450 pH/ion Meter Instruction Manual 1996
$12.95#Ad Buy Now
Thermo Scientific Orion 2 Star pH Benchtop Meter Digital Lab Analyzer, Tested
$67.46#Ad Buy Now or Best Offer
EXPIRED 04/2017 - Oakton pH Electrode WD-35805-05, BNC, Single Junction
$49.95#Ad Buy Now
YSI Pro Plus Instrument - Pro 1020 Professional series VERY GOOD TESTED
$350.00#Ad Auction · No bids
NIB HORIBA HE-960HC (W) Conductivity Meter 22078 NEW HE960HC
$45.00#Ad Buy Now
VIVOSUN 3 in 1 Digital Soil Tester Sunlight Soil Moisture Water PH Garden Plant
$8.99#Ad Buy Now or Best Offer
Traceable VWR 21800-012 Conductivity Meter With Probe & Travel Case Portable
$41.99#Ad Buy Now
Pfaudler Werke - pH / ORP Probe Cable - 10 meter
$60.75#Ad Buy Now
Milwaukee pH Tester Calibration/Buffer 7.01 Solution - Lot of 3
$10.99#Ad Buy Now
PH Meter, TDS&EC PPM Meter Water Tester for Household Drinking,Pool and Aquarium
$9.99#Ad Buy Now
Traceable VWR 21800-012 Conductivity Meter With Probe GUARANTEED
$35.00#Ad Buy Now
Optek C221 Control 200 Conductivity Controller
$97.06#Ad Buy Now or Best Offer
Bluelab Combo Meter pH & Conductivity Nutrient+Temperature and new unit in box
$125.00#Ad Buy Now or Best Offer
U.S. Water SP-710B Conductivity Meter Multimeter Pyxis MAC 049162A9C997
$95.00#Ad Buy Now or Best Offer
Extech 60120B: Electrode, PH 120-C Combination BNC
$68.99#Ad Buy Now
Ohaus St20 Ph Meter, 45 Mm W, 185 Mm H, Digital
$95.99#Ad Buy Now
Hanna Instruments HI709 Manganese High Range Checker ppm Kit
$49.50#Ad Buy Now or Best Offer
Hanna Instruments HI 2211 Benchtop pH/ORP Meter w/ Electrode Arm Tested Working
$179.00#Ad Buy Now
WTW TetraCon 325-3 Universal Standard Conductivity Probe Cell Epoxy, Graphite
$342.30#Ad Buy Now or Best Offer
Precision pH Meter and Probe Kit (8100) Thermoworks
$150.00#Ad Buy Now or Best Offer
Cole-Parmer 19601-03 Traceable Portable Conductivity Meter
$90.00#Ad Buy Now or Best Offer
Mettler Toledo MP120 Portable pH Meter
$96.82#Ad Buy Now or Best Offer
PH/ORP Controller with Monitoring and Dosing ( You get what's photographed)
$108.00#Ad Buy Now
AI311 Premium Series PH60 Waterproof pH Pocket Tester Kit Tested
$74.99#Ad Buy Now or Best Offer
Thermo Orion Model 210A pH Meter with Probe
$39.60#Ad Buy Now
HACH H160 Portable pH Meter
$71.98#Ad Buy Now
HM Digital TDS-EZ Water Quality TDS 0-9990 ppm. Measurement Range, Purple
$26.99#Ad Buy Now
Thermo Scientific Orion 9107BNMD Single Junction Epoxy Bodied pH/ATC Triode
$280.00#Ad Buy Now or Best Offer
HACH DR900 HANDHELD PORTABLE COLORIMETER (For Parts )
$295.00#Ad Buy Now or Best Offer
Advantage Controls HT-3P VA Portable Conductivity Meter Tester TDS Water
$59.99#Ad Buy Now or Best Offer
Bluelab Combo Meter pH EC Temperature Nutrient Solution Tester Kit Probes Case
$189.98#Ad Buy Now