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pH, Conductivity & TDS Meters | Surplus Network

Hach DR900 Multiparameter Portable Colorimeter
USA
Hach DR900 Multiparameter Portable...

$200.00 USD

Hach DR900 Multiparameter Portable...

$200.00 USD

New Extech ExStik PH100 Waterproof pH Meter
USA
New Extech ExStik PH100 Waterproof pH...

$74.99 USD

New Extech ExStik PH100 Waterproof pH...

$74.99 USD

Oakton 54X002608C pH/mV/°C/°F Temperature Meter W/ RS232 pH 110 Series W/ Probe
USA
Oakton 54X002608C pH/mV/°C/°F...

$74.99 USD

Oakton 54X002608C pH/mV/°C/°F...

$74.99 USD

Apera Instruments AI311 Premium Series PH60 Waterproof pH Pocket Tester Kit
USA
Apera Instruments AI311 Premium...

$79.99 USD

Apera Instruments AI311 Premium...

$79.99 USD

Thermo Scientific Orion Star A111 Benchtop pH/mv/Temp Meter, Lab Instrument
USA
Thermo Scientific Orion Star A111...

$79.99 USD

Thermo Scientific Orion Star A111...

$79.99 USD

Jenco 6010N Hand-held pH / ORP / Temperature Meter Electrode Made in USA
USA
Jenco 6010N Hand-held pH / ORP /...

$79.99 USD

Jenco 6010N Hand-held pH / ORP /...

$79.99 USD

HANNA INSTRUMENTS HI 9813-6, HAND HELD PORTABLE PH/EC/TDS/TEMPERATURE. METER
USA
HANNA INSTRUMENTS HI 9813-6, HAND...

$100.00 USD

HANNA INSTRUMENTS HI 9813-6, HAND...

$100.00 USD

HANNA INSTRUMENTS pH/TDS/EC METER HI 9813 w/HI 1285 Probe • New
USA
HANNA INSTRUMENTS pH/TDS/EC METER HI...

$100.00 USD

HANNA INSTRUMENTS pH/TDS/EC METER HI...

$100.00 USD

Hanna HI8043 Dissolved Oxygen Meter / DO Meter
USA
Hanna HI8043 Dissolved Oxygen Meter...

$49.00 USD

Hanna HI8043 Dissolved Oxygen Meter...

$49.00 USD

HANNA Instruments HI-208 pH Meter with Electrode and AC Wall Adapter
USA
HANNA Instruments HI-208 pH Meter...

$149.99 USD

HANNA Instruments HI-208 pH Meter...

$149.99 USD

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

$107.00 USD

Apera Premium Series EC60...

$107.00 USD

THERMO ORION Star A211 pH -2 to 20 Benchtop Meter & Solutions STARA2110
USA
THERMO ORION Star A211 pH -2 to 20...

$139.99 USD

THERMO ORION Star A211 pH -2 to 20...

$139.99 USD

SARK100 Portable Analyzer Meter User-Friendly Operation with High L9W7
USA
SARK100 Portable Analyzer Meter...

$50.00 USD

SARK100 Portable Analyzer Meter...

$50.00 USD

Hach Sension1 Portable Conductivity PH Meter #W4853
USA
Hach Sension1 Portable Conductivity...

$50.00 USD

Hach Sension1 Portable Conductivity...

$50.00 USD

YSI Professional Plus Water Tester Meter With Everthing Seen
USA
YSI Professional Plus Water Tester...

$975.00 USD

YSI Professional Plus Water Tester...

$975.00 USD

Hach 2100Q
USA
Hach 2100Q

$110.00 USD

Hach 2100Q

$110.00 USD

SALE 067 Body pH TEST Tape Paper Roll 4 Saliva & Urine Acid 5.5 Alkaline Health
USA
SALE 067 Body pH TEST Tape Paper Roll...

$10.99 USD

SALE 067 Body pH TEST Tape Paper Roll...

$10.99 USD

*ZEROWATER CULLIGAN TDS DIGITAL METER TESTER OEM ZERO WATER REPLACEMENT*
USA
*ZEROWATER CULLIGAN TDS DIGITAL METER...

$10.00 USD

*ZEROWATER CULLIGAN TDS DIGITAL METER...

$10.00 USD

Hamilton 237123 OxyFerm Membrane Kit3 Membranes
USA
Hamilton 237123 OxyFerm Membrane Kit3...

$179.10 USD

Hamilton 237123 OxyFerm Membrane Kit3...

$179.10 USD

Oakton Double Junction Ph And Temperature Electrode 35808-72
USA
Oakton Double Junction Ph And...

$75.00 USD

Oakton Double Junction Ph And...

$75.00 USD

EXTECH INSTRUMENTS RE300 ExStik ORP Meter
USA
EXTECH INSTRUMENTS RE300 ExStik ORP...

$75.00 USD

EXTECH INSTRUMENTS RE300 ExStik ORP...

$75.00 USD

Extech ExStik PH100 Waterproof pH Meter New
USA
Extech ExStik PH100 Waterproof pH...

$84.99 USD

Extech ExStik PH100 Waterproof pH...

$84.99 USD

Hanna Instruments HI9025C PH METER KIT
USA
Hanna Instruments HI9025C PH METER KIT

$99.99 USD

Hanna Instruments HI9025C PH METER KIT

$99.99 USD

201-C Combination Ph Electrode, BNC Connector, Polycarbonate-Body (AI1301)
USA
201-C Combination Ph Electrode, BNC...

$43.99 USD

201-C Combination Ph Electrode, BNC...

$43.99 USD

VWR Symphony Benchtop Digital pH Meter. SB90M5. Includes power cord+pH &EC probe
USA
VWR Symphony Benchtop Digital pH...

$80.00 USD

VWR Symphony Benchtop Digital pH...

$80.00 USD

🔥Hach HQ411D Nice unit!
USA
🔥Hach HQ411D Nice unit!

$469.34 USD

🔥Hach HQ411D Nice unit!

$469.34 USD

VIVOSUN 3 in 1 Digital Soil Tester Sunlight Soil Moisture Water PH Garden Plant
USA
VIVOSUN 3 in 1 Digital Soil Tester...

$8.54 USD

VIVOSUN 3 in 1 Digital Soil Tester...

$8.54 USD

Barnant 559-3800 Digi Sense Digital PH/MV/ORP Meter
USA
Barnant 559-3800 Digi Sense Digital...

$125.99 USD

Barnant 559-3800 Digi Sense Digital...

$125.99 USD

METTLER TOLEDO 3-in-1 pH electrode Sensor LE 438
USA
METTLER TOLEDO 3-in-1 pH electrode...

$224.10 USD

METTLER TOLEDO 3-in-1 pH electrode...

$224.10 USD

Apera EC60-Z Smart Bluetooth Conductivity EC/TDS/Sal/Res Tester KIT for Water
USA
Apera EC60-Z Smart Bluetooth...

$94.99 USD

Apera EC60-Z Smart Bluetooth...

$94.99 USD

Ohaus ST300 0.00 to 14.00 pH Range pH Meter
USA
Ohaus ST300 0.00 to 14.00 pH Range pH...

$199.99 USD

Ohaus ST300 0.00 to 14.00 pH Range pH...

$199.99 USD

SARK100 Portable Analyzer Meter User-Friendly Operation with High P6Z4
USA
SARK100 Portable Analyzer Meter...

$92.34 USD

SARK100 Portable Analyzer Meter...

$92.34 USD

Extech Replacement pH Meter Electrode with Cable 6015WC
USA
Extech Replacement pH Meter Electrode...

$24.00 USD

Extech Replacement pH Meter Electrode...

$24.00 USD

VIVOSUN Soil Tester, 3-in-1 Plant Moisture Meter Light PH Tester
USA
VIVOSUN Soil Tester, 3-in-1 Plant...

$10.79 USD

VIVOSUN Soil Tester, 3-in-1 Plant...

$10.79 USD

Extech EC170 Water Quality Meters-Conductivity / Salinity
USA
Extech EC170 Water Quality...

$69.99 USD

Extech EC170 Water Quality...

$69.99 USD

Hanna HI9033 Multi Range Conductivity Meter. Made in Romania HI 9033
USA
Hanna HI9033 Multi Range Conductivity...

$69.99 USD

Hanna HI9033 Multi Range Conductivity...

$69.99 USD

Apera Instruments AI311 Premium Series PH60 Waterproof pH Pocket Tester Kit
USA
Apera Instruments AI311 Premium...

$69.99 USD

Apera Instruments AI311 Premium...

$69.99 USD

Hach H160 PH Meter with Probe and Calibration Specimens Tested
USA
Hach H160 PH Meter with Probe and...

$195.00 USD

Hach H160 PH Meter with Probe and...

$195.00 USD

At-Home Drinking Water Test Tool Quality Rapid TDS Meter Analyzer Kit Gauge Tap
USA
At-Home Drinking Water Test Tool...

$7.95 USD

At-Home Drinking Water Test Tool...

$7.95 USD

VWR pHenomenal Multi-Parameter Meter (pH/conductivity/oxygen), Bench, MU 6100 L
USA
VWR pHenomenal Multi-Parameter Meter...

$379.00 USD

VWR pHenomenal Multi-Parameter Meter...

$379.00 USD

HACH Pocket Colorimeter II CHLORINE LCD DISPLAY Test Kit
USA
HACH Pocket Colorimeter II CHLORINE...

$229.00 USD

HACH Pocket Colorimeter II CHLORINE...

$229.00 USD

YOKOGAWA PH97-07 PH Sensor, Retractable
USA
YOKOGAWA PH97-07 PH Sensor, Retractable

$63.99 USD

YOKOGAWA PH97-07 PH Sensor, Retractable

$63.99 USD

7in1 PH/ORP/EC/TEMP/SALT/S.G/TDS Digital LCD Water Quality Tester Meter Detector
USA
7in1 PH/ORP/EC/TEMP/SALT/S.G/TDS...

$22.39 USD

7in1 PH/ORP/EC/TEMP/SALT/S.G/TDS...

$22.39 USD

Thermo Orion 520A pH Meter w/ Accumet Probe
USA
Thermo Orion 520A pH Meter w/ Accumet...

$99.00 USD

Thermo Orion 520A pH Meter w/ Accumet...

$99.00 USD

Keco Industries Water Test Orion, Thermo Scientific Myron Annalite Nephelometer
USA
Keco Industries Water Test Orion,...

$99.00 USD

Keco Industries Water Test Orion,...

$99.00 USD

Fisher Scientific Accumet AR20 pH/Conductivity Meter
USA
Fisher Scientific Accumet AR20...

$99.00 USD

Fisher Scientific Accumet AR20...

$99.00 USD

Apera Premium Series PH60F Flat pH Pocket Tester Kit for Surface pH Test
USA
Apera Premium Series PH60F Flat pH...

$59.99 USD

Apera Premium Series PH60F Flat pH...

$59.99 USD

Milwaukee MW802 Smart 3-in-1 Portable Meter - pH/EC/TDS
USA
Milwaukee MW802 Smart 3-in-1 Portable...

$204.95 USD

Milwaukee MW802 Smart 3-in-1 Portable...

$204.95 USD

^ Mettler Toledo SevenExcellence Multiparameter Benchtop pH/mV Meter (2 Modules)
USA
^ Mettler Toledo SevenExcellence...

$450.00 USD

^ Mettler Toledo SevenExcellence...

$450.00 USD

SI Analytics Reference Buffer Solutions In Glass Ampoules (6 Ampoules) L 4789
USA
SI Analytics Reference Buffer...

$79.00 USD

SI Analytics Reference Buffer...

$79.00 USD

Vintage Hach DR-A Colorimeter untested no cord selling as-is
USA
Vintage Hach DR-A Colorimeter...

$39.99 USD

Vintage Hach DR-A Colorimeter...

$39.99 USD

EXTECH INSTRUMENTS RE300 ExStik ORP Meter
USA
EXTECH INSTRUMENTS RE300 ExStik ORP...

$30.00 USD

EXTECH INSTRUMENTS RE300 ExStik ORP...

$30.00 USD

OAKTON Acorn Ion 6 Meter, Ion, mV, pH, °C, Temperature, Protective Boot Stand.
USA
OAKTON Acorn Ion 6 Meter, Ion, mV,...

$49.50 USD

OAKTON Acorn Ion 6 Meter, Ion, mV,...

$49.50 USD

SciLog SciCon Conductivity Monitor with Cond/Temp Flow Cell 080-599PSX
USA
SciLog SciCon Conductivity Monitor...

$299.00 USD

SciLog SciCon Conductivity Monitor...

$299.00 USD

4 in 1 Digital Water Quality Tester TDS/EC/PH/TEMP Meter Test Filter Pen US
USA
4 in 1 Digital Water Quality Tester...

$15.99 USD

4 in 1 Digital Water Quality Tester...

$15.99 USD

YSI Professional Series Pro10 pH/ORP/Temperature NEW in box 6050010
USA
YSI Professional Series Pro10...

$589.00 USD

YSI Professional Series Pro10...

$589.00 USD

Milwaukee CD611 Digital Conductivity Pen (EC) for Hydroponics
USA
Milwaukee CD611 Digital Conductivity...

$29.99 USD

Milwaukee CD611 Digital Conductivity...

$29.99 USD

Mettler Toledo SevenExcellence pH Meter
USA
Mettler Toledo SevenExcellence pH Meter

$127.46 USD

Mettler Toledo SevenExcellence pH Meter

$127.46 USD

HACH 2100q portable turbidimeter - PARTS / REPAIR - Does not power on
USA
HACH 2100q portable turbidimeter -...

$249.95 USD

HACH 2100q portable turbidimeter -...

$249.95 USD

Hach SensION3 (51750-60) pH Meter w/Power Supply - NO PROBE
USA
Hach SensION3 (51750-60) pH Meter...

$69.00 USD

Hach SensION3 (51750-60) pH Meter...

$69.00 USD

Extech ExStik PH100 Waterproof pH Meter
USA
Extech ExStik PH100 Waterproof pH Meter

$69.00 USD

Extech ExStik PH100 Waterproof pH Meter

$69.00 USD

Apera PH60 Premium Waterproof pH Tester for general water solutions
USA
Apera PH60 Premium Waterproof pH...

$79.60 USD

Apera PH60 Premium Waterproof pH...

$79.60 USD

VWR 76460-504 pHenomenal pH 1100 H pH/mV/°C Meter Handheld W/ Case
USA
VWR 76460-504 pHenomenal pH 1100 H...

$300.00 USD

VWR 76460-504 pHenomenal pH 1100 H...

$300.00 USD

Hanna HI 1311 Glass Bodied Refillable Laboratory Combination pH electrode probe
USA
Hanna HI 1311 Glass Bodied Refillable...

$89.50 USD

Hanna HI 1311 Glass Bodied Refillable...

$89.50 USD

HACH MODEL DR/890 PORTABLE HANDHELD DIGITAL WATER COLORIMETER (Free Shipping)
USA
HACH MODEL DR/890 PORTABLE HANDHELD...

$649.00 USD

HACH MODEL DR/890 PORTABLE HANDHELD...

$649.00 USD

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

$294.00 USD

Apera PH700 Benchtop Lab pH Meter...

$294.00 USD

Apera Instruments PH60-E Replacement Probe for PH60 Pocket pH Tester
USA
Apera Instruments PH60-E Replacement...

$48.00 USD

Apera Instruments PH60-E Replacement...

$48.00 USD

Charging Dock For Hach Sension Portable Conductivity pH Meter P/N: 5187560
USA
Charging Dock For Hach Sension...

$49.99 USD

Charging Dock For Hach Sension...

$49.99 USD

FISHER SCIENTIFIC AB15 ACCUMET BASIC PH METER EXCELLENT WORKING & PHYSICAL SHAPE
USA
FISHER SCIENTIFIC AB15 ACCUMET BASIC...

$34.95 USD

FISHER SCIENTIFIC AB15 ACCUMET BASIC...

$34.95 USD

2x TDS Meter 0-9990ppm Tap Drinking Water Purity Quality Tester Agile Electrode
USA
2x TDS Meter 0-9990ppm Tap Drinking...

$7.99 USD

2x TDS Meter 0-9990ppm Tap Drinking...

$7.99 USD

ORION 3 STAR BENCH PH METER PLEASE READ DESCRIPTION
USA
ORION 3 STAR BENCH PH METER PLEASE...

$9.95 USD

ORION 3 STAR BENCH PH METER PLEASE...

$9.95 USD

Hanna HI2212 Benchtop PH Meter
USA
Hanna HI2212 Benchtop PH Meter

$374.99 USD

Hanna HI2212 Benchtop PH Meter

$374.99 USD

WORKS PERFECTLY Mettler Toledo SevenCompact S220 pH / Ion Meter w/ electrode
USA
WORKS PERFECTLY Mettler Toledo...

$374.99 USD

WORKS PERFECTLY Mettler Toledo...

$374.99 USD

NEW in Box! REPLACEMENT ARM ONLY 13637671 -fits Fisher Sci Accumet XL250 +others
USA
NEW in Box! REPLACEMENT ARM ONLY...

$58.00 USD

NEW in Box! REPLACEMENT ARM ONLY...

$58.00 USD

IQ Scientific IQ150 pH Meter Dual pH Technology mV Thermometer With Case
USA
IQ Scientific IQ150 pH Meter Dual pH...

$129.00 USD

IQ Scientific IQ150 pH Meter Dual pH...

$129.00 USD

2x TDS Meter PPM/EC/TEMP Meter Digital Backlit Water Quality Tester Light Alarm
USA
2x TDS Meter PPM/EC/TEMP Meter...

$11.99 USD

2x TDS Meter PPM/EC/TEMP Meter...

$11.99 USD

T195652 Thermo Scientific Orion Versa Star Advanced Electrochemistry Meter
USA
T195652 Thermo Scientific Orion Versa...

$400.00 USD

T195652 Thermo Scientific Orion Versa...

$400.00 USD

Mettler Toledo pH Sensor InPro3250i/SG/120 52005373
USA
Mettler Toledo pH Sensor...

$400.00 USD

Mettler Toledo pH Sensor...

$400.00 USD

ATG Pharma CF600 Peristaltic Pump W/ AF600 Controller Bottle Filling Machine
USA
ATG Pharma CF600 Peristaltic Pump W/...

$1,379.35 USD

ATG Pharma CF600 Peristaltic Pump W/...

$1,379.35 USD

Fisher Scientific Accumet pH Meter 915 w/Sensorex Electrode
USA
Fisher Scientific Accumet pH Meter...

$90.00 USD

Fisher Scientific Accumet pH Meter...

$90.00 USD

METTLER TOLEDO™ SevenExcellence™ S470 pH/Conductivity Benchtop Meter Bundle
USA
METTLER TOLEDO™ SevenExcellence™...

$950.00 USD

METTLER TOLEDO™ SevenExcellence™...

$950.00 USD

ENDRESS + HAUSER CPS71D-7TB6G GLASS PH ELECTRODE NEW
USA
ENDRESS + HAUSER CPS71D-7TB6G GLASS...

$4.99 USD

ENDRESS + HAUSER CPS71D-7TB6G GLASS...

$4.99 USD

Extech EC400 ExStik II Conductivity TDS Salinity Meter New In Box
USA
Extech EC400 ExStik II Conductivity...

$95.00 USD

Extech EC400 ExStik II Conductivity...

$95.00 USD

Apera PH60-Z Smart Bluetooth pH Tester for general water solutions
USA
Apera PH60-Z Smart Bluetooth pH...

$130.50 USD

Apera PH60-Z Smart Bluetooth pH...

$130.50 USD

METTLER TOLEDO FG2 51302908 FIVEGO PORTABLE PH/ORP/TEMPERATURE METER
USA
METTLER TOLEDO FG2 51302908 FIVEGO...

$75.98 USD

METTLER TOLEDO FG2 51302908 FIVEGO...

$75.98 USD

Hach Analyzer SC100
USA
Hach Analyzer SC100

$198.95 USD

Hach Analyzer SC100

$198.95 USD

HACH 9180100 Filter Housing
USA
HACH 9180100 Filter Housing

$116.63 USD

HACH 9180100 Filter Housing

$116.63 USD

Hanna Instruments Low Range pH/Conductivity/TDS Tester
USA
Hanna Instruments Low Range...

$209.99 USD

Hanna Instruments Low Range...

$209.99 USD

Atlas Scientific Lab Grade pH Probes + Calibration Solution - ENV-40-PH - NEW
USA
Atlas Scientific Lab Grade pH Probes...

$84.93 USD

Atlas Scientific Lab Grade pH Probes...

$84.93 USD

Hanna Instruments Waterproof Portable pH/Temp Meter HI991001 Brewing 🌡️
USA
Hanna Instruments Waterproof Portable...

$179.95 USD

Hanna Instruments Waterproof Portable...

$179.95 USD

HACH DR/850 Waterproof Multiparameter Colorimeter - UNTESTED
USA
HACH DR/850 Waterproof Multiparameter...

$284.99 USD

HACH DR/850 Waterproof Multiparameter...

$284.99 USD

NOS Orion Thermo Scientific # 910600 General Purpose pH Combination Electrode
USA
NOS Orion Thermo Scientific # 910600...

$96.00 USD

NOS Orion Thermo Scientific # 910600...

$96.00 USD

VWR SympHony H10P Portable handheld pH Meter with VWR 89231-608 Electrode probe
USA
VWR SympHony H10P Portable handheld...

$149.00 USD

VWR SympHony H10P Portable handheld...

$149.00 USD

Corning M140 pH Meter
USA
Corning M140 pH Meter

$61.99 USD

Corning M140 pH Meter

$61.99 USD

Omega CDTX-90-2P Conductivity / Resistivity Meter
USA
Omega CDTX-90-2P Conductivity /...

$160.00 USD

Omega CDTX-90-2P Conductivity /...

$160.00 USD

Milwaukee EC59 PRO Waterproof 3-in-1 Conductivity / TDS & Temperature Tester
USA
Milwaukee EC59 PRO Waterproof 3-in-1...

$61.00 USD

Milwaukee EC59 PRO Waterproof 3-in-1...

$61.00 USD

Milwaukee, MW801 PRO 3-in-1 Low Range pH, EC, TDS Combo Meter with ATC,
USA
Milwaukee, MW801 PRO 3-in-1 Low Range...

$208.99 USD

Milwaukee, MW801 PRO 3-in-1 Low Range...

$208.99 USD

PH Meter Online Controller Digital Industrial PH Tester Water Quality Monitor
China
PH Meter Online Controller Digital...

$123.20 USD

PH Meter Online Controller Digital...

$123.20 USD

Hamilton 238633-1213 EasyFerm Plus PHI S8 120
USA
Hamilton 238633-1213 EasyFerm Plus...

$233.10 USD

Hamilton 238633-1213 EasyFerm Plus...

$233.10 USD

Nalco pH/mV/°C Probe 500-R1340.88, -2 to 16 pH, for Meter 400-C0060.88
USA
Nalco pH/mV/°C Probe 500-R1340.88,...

$139.95 USD

Nalco pH/mV/°C Probe 500-R1340.88,...

$139.95 USD