pH, ORP, ISE Testing


Essential testing for water chemistry control.


pH, ORP, and ISE testing solutions ensure proper water balance and treatment efficiency. These tools provide precise readings in municipal and industrial settings and optimize water quality.

Hach pH Test Kit, 4.0 - 10.0 pH, Model 17N, 147011
Quick View
Hach pH Test Kit, 4.0 - 10.0 pH, Model 17N, 147011
$142.00

Mfr. Part # 147011

Product # 700768

Hach pH Test Kit, 7.4-9.6 pH, Model 17J, 147009
Quick View
Hach pH Test Kit, 7.4-9.6 pH, Model 17J, 147009
$150.00

Mfr. Part # 147009

Product # 700767

Hach pH Test Kit, 6.6 - 8.4 pH, Model 17H, 147008
Quick View
Hach pH Test Kit, 6.6 - 8.4 pH, Model 17H, 147008
$150.00

Mfr. Part # 147008

Product # 700766

Hach pH Test Kit, 5.6 - 8.4 pH, Model 17F, 147006
Quick View
Hach pH Test Kit, 5.6 - 8.4 pH, Model 17F, 147006
$150.00

Mfr. Part # 147006

Product # 700765

Hach Carbon Dioxide, DO, & pH Test Kit, Model CA-10WR, 143801
Quick View
Hach Carbon Dioxide, DO, & pH Test Kit, Model CA-10WR, 143801
$342.00

Mfr. Part # 143801

Product # 700750

Hach Shroud Kit for Rugged Probe, HQd series, 5825900
Quick View
Hach Shroud Kit for Rugged Probe, HQd series, 5825900
$46.99

Mfr. Part # 5825900

Product # 702285

Hach Soaker Bottle for Electrode Storage, 5192900
Quick View
Hach Soaker Bottle for Electrode Storage, 5192900
$11.15

Mfr. Part # 5192900

Product # 702181

Hach HQd Meter Stand, 4754900
Quick View
Hach HQd Meter Stand, 4754900
$99.25

Mfr. Part # 4754900

Product # 702141

Hach Luer Lock Dispensing Cap Kit for 59 mL Bottle (2656826), 2965700
Quick View
Hach Luer Lock Dispensing Cap Kit for 59 mL Bottle (2656826), 2965700
$16.29

Mfr. Part # 2965700

Product # 702014

Hach Iron & pH Color Disc Test Kit, Model IR-23, 256200
Quick View
Hach Iron & pH Color Disc Test Kit, Model IR-23, 256200
$325.00

Mfr. Part # 256200

Product # 700899

Hach pH, Bromthymol Blue, Color Disc, 5.4-8.4, 9261200
Quick View
Hach pH, Bromthymol Blue, Color Disc, 5.4-8.4, 9261200
$139.00

Mfr. Part # 9261200

Product # 702475

Hach pH Electrode Storage Bottle, 9260300
Quick View
Hach pH Electrode Storage Bottle, 9260300
$15.40

Mfr. Part # 9260300

Product # 702473

Hach Universal Probe St& for St&ard IntelliCAL® Probes, 8508850
Quick View
Hach Universal Probe Stand for Standard IntelliCAL Probes 8508850
$321.00

Mfr. Part # 8508850

Product # 702367

Hach HQ440D Water Quality Lab ISE Ammonia & Nitrate Ion Meter Kit w/ ISENH3181 & ISENO3181,8508400
Quick View
Hach HQ440D Water Quality Lab ISE Ammonia & Nitrate Ion Meter Kit with ISENH3181 & ISENO31818508400
$5,965.00

Mfr. Part # 8508400

Product # 702363

Hach Protective Glove for Portable HQd Meter, 5828700
Quick View
Hach Protective Glove for Portable HQd Meter, 5828700
$103.00

Mfr. Part # 5828700

Product # 702289

Hach Probe Cable Depth Markers for Rugged IntelliCAL Probes, 5828610
Quick View
Hach Probe Cable Depth Markers for Rugged IntelliCAL Probes, 5828610
$78.59

Mfr. Part # 5828610

Product # 702288

Hach Electrode Holder for HQD Portable Meters (Standard electrodes only), 5829400
Quick View
Hach Electrode Holder for HQD Portable Meters (Standard Electrodes Only) 5829400
$62.79

Mfr. Part # 5829400

Product # 702290

Hach Certified Buffer Standard Solution, IUPAC, pH 12.45, 500 mL, S11M008
Quick View
Hach Certified Buffer Standard Solution, IUPAC, pH 12.45, 500 mL, S11M008
$67.15

Mfr. Part # S11M008

Product # 704040

Hach Certified Buffer Standard Solution, IUPAC, pH 9.180, 500 mL, S11M006
Quick View
Hach Certified Buffer Standard Solution, IUPAC, pH 9.180, 500 mL, S11M006
$67.15

Mfr. Part # S11M006

Product # 704038

Hach Certified Buffer Standard Solution, IUPAC, pH 7.413, 500 mL, S11M005
Quick View
Hach Certified Buffer Standard Solution, IUPAC, pH 7.413, 500 mL, S11M005
$67.15

Mfr. Part # S11M005

Product # 704037

Hach Certified Buffer Standard Solution, IUPAC, pH 1.679, 500 mL, S11M001
Quick View
Hach Certified Buffer Standard Solution, IUPAC, pH 1.679, 500 mL, S11M001
$67.15

Mfr. Part # S11M001

Product # 704033

Hach Electrolyte solution 0.1 M, 125mL for sensION+ ISE, LZW9901.99
Quick View
Hach Electrolyte Solution 0.1 M, 125mL for SensION+ ISE, LZW9901.99
$29.75

Mfr. Part # LZW9901.99

Product # 703847

Hach ORP Standard, Light's Solution Ampules, 20 mL, pk/25, 2612520
Quick View
Hach ORP Standard, Light's Solution Ampules, 20 mL, pk/25, 2612520
$261.00

Mfr. Part # 2612520

Product # 701755

Hach Filling Solution, Reference, 3 M KCl, 125 mL, LZW9510.99
Quick View
Hach Filling Solution, Reference, 3 M KCl, 125 mL, LZW9510.99
$26.89

Mfr. Part # LZW9510.99

Product # 703826

Hach Filling Solution, Reference, 3 M KCl, 250 mL, LZW9500.99
Quick View
Hach Filling Solution, Reference, 3 M KCl, 250 mL, LZW9500.99
$40.49

Mfr. Part # LZW9500.99

Product # 703824

Hach Electrolyte solution (KCl 3M), 50mL, LZW9509.99
Quick View
Hach Electrolyte Solution (KCl 3M), 50mL, LZW9509.99
$19.05

Mfr. Part # LZW9509.99

Product # 703825

Hach SensION+, standard redox solution, 220 mV, 1000ml, LZW9401.99
Quick View
Hach SensION+, Standard Redox Solution, 220 mV, 1000mL, LZW9401.99
$134.00

Mfr. Part # LZW9401.99

Product # 703814

Hach Ammonium Chloride Reference Cartridge, pk/2, 2595802
Quick View
Hach Ammonium Chloride Reference Cartridge, pk/2, 2595802
$27.15

Mfr. Part # 2595802

Product # 701721

Hach Filling Solution, Reference, Saturated KCl, 500 mL, 25118049
Quick View
Hach Filling Solution, Reference, Saturated KCl, 500 mL, 25118049
$59.95

Mfr. Part # 25118049

Product # 702572

Hach Filling Solution, Reference, Saturated KCl, 59 mL, 25118026
Quick View
Hach Filling Solution, Reference, Saturated KCl, 59 mL, 25118026
$35.65

Mfr. Part # 25118026

Product # 702571

Hach pH Electrode Filling Solution, 65 mL, 5194100
Quick View
Hach pH Electrode Filling Solution, 65 mL, 5194100
$22.35

Mfr. Part # 5194100

Product # 702190

Hach Electrode Cleaning Solution for Minerals/Inorganic Samples, 500 mL, 2975149
Quick View
Hach Electrode Cleaning Solution for Minerals/Inorganic Samples, 500 mL, 2975149
$55.59

Mfr. Part # 2975149

Product # 702040

Hach Reducing Solution, ORP Electrodes, 2965349
Quick View
Hach Reducing Solution, ORP Electrodes, 2965349
$46.69

Mfr. Part # 2965349

Product # 702012

Hach Filling Solution, ISENa381, 0.02 M NH₄Cl, 59 mL, 2965126
Quick View
Hach Filling Solution, ISENa381, 0.02 M NH₄Cl, 59 mL, 2965126
$45.29

Mfr. Part # 2965126

Product # 702010

Hach Electrode Cleaning Solution for Fats, Oils and Grease Samples, 500 mL, 2964449
Quick View
Hach Electrode Cleaning Solution for Fats Oils & Grease Samples 500 mL 2964449
$41.50

Mfr. Part # 2964449

Product # 702007

Hach Hardness, Iron, and pH Test Kit, Model HA-62B, 183702
Quick View
Hach Hardness Iron & pH Test Kit Model HA-62B 183702
$331.00

Mfr. Part # 183702

Product # 700790

Hach Certified Buffer Standard Solution, IUPAC, pH 10.012, 500 mL, S11M007
Quick View
Hach Certified Buffer Standard Solution, IUPAC, pH 10.012, 500 mL, S11M007
$67.15

Mfr. Part # S11M007

Product # 704039

Hach Certified Buffer Standard Solution, IUPAC, pH 4.005, 500 mL, S11M002
Quick View
Hach Certified Buffer Standard Solution, IUPAC, pH 4.005, 500 mL, S11M002
$67.15

Mfr. Part # S11M002

Product # 704034

Hach Certified Buffer Standard Solution, pH 7.000, 500 mL, S11M004
Quick View
Hach Certified Buffer Standard Solution, pH 7.000, 500 mL, S11M004
$67.15

Mfr. Part # S11M004

Product # 704036

Hach Certified Buffer Standard Solution, IUPAC, pH 6.865, 500 mL, S11M003
Quick View
Hach Certified Buffer Standard Solution, IUPAC, pH 6.865, 500 mL, S11M003
$67.15

Mfr. Part # S11M003

Product # 704035

Hach Pocket Pro+ pH Tester with Replaceable Sensor , 9532000
Quick View
Hach Pocket Pro+ pH Tester with Replaceable Sensor 9532000
$316.00

Mfr. Part # 9532000

Product # 702547

Hach Pocket Pro pH Tester , 9531000
Quick View
Hach Pocket Pro pH Tester, 9531000
$201.00

Mfr. Part # 9531000

Product # 702538

Hach Electrode Cleaning Solution for Regular Maintenance, 500 mL, 2965249
Quick View
Hach Electrode Cleaning Solution for Regular Maintenance, 500 mL, 2965249
$58.35

Mfr. Part # 2965249

Product # 702011

Hach Filling Solution, Reference, 2.44 M KCl, 59 mL, 2965026
Quick View
Hach Filling Solution, Reference, 2.44 M KCl, 59 mL, 2965026
$36.45

Mfr. Part # 2965026

Product # 702009

Hach Filling Solution, Reference, 3 M KCl with AgCl, 28 mL, 2841700
Quick View
Hach Filling Solution Reference 3 M KCl with AgCl 28 mL 2841700
$22.75

Mfr. Part # 2841700

Product # 701967

Hach 5 in 1 Water Quality Test Strips, 2755250
Quick View
Hach 5 in 1 Water Quality Test Strips, 2755250
$31.45

Mfr. Part # 2755250

Product # 701888

Hach pH Test Strips, 4-9 pH units, 2745650
Quick View
Hach pH Test Strips, 4-9 pH Units, 2745650
$21.49

Mfr. Part # 2745650

Product # 701880

Hach pH Paper, 0-14 pH Range, 100/pk, 2601300
Quick View
Hach pH Paper, 0-14 pH Range, 100/pk, 2601300
$42.49

Mfr. Part # 2601300

Product # 701725