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 Potassium Chloride Reference Electrolyte Gel Cartridge, 2/pk, 2546902
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Hach Potassium Chloride Reference Electrolyte Gel Cartridge, 2/pk, 2546902
$26.25

Mfr. Part # 2546902

Product # 701683

Hach ZoBell's ORP/Redox Standard Solution, 500 mL, 2316949
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Hach ZoBell's ORP/Redox Standard Solution, 500 mL, 2316949
$88.89

Mfr. Part # 2316949

Product # 701422

Hach pH Electrode Storage Solution, 500 mL, 2756549
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Hach pH Electrode Storage Solution, 500 mL, 2756549
$59.55

Mfr. Part # 2756549

Product # 701891

Hach pH Electrode Storage Solution Powder Pillows, pk/20, 2657364
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Hach pH Electrode Storage Solution Powder Pillows, pk/20, 2657364
$57.79

Mfr. Part # 2657364

Product # 701782

Hach pH Electrode Storage Solution, 50 mL, 2756526
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Hach pH Electrode Storage Solution, 50 mL, 2756526
$19.25

Mfr. Part # 2756526

Product # 701890

Hach Filling Solution, Reference, 3 M KCl, 50 mL, 2756559
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Hach Filling Solution, Reference, 3 M KCl, 50 mL, 2756559
$31.09

Mfr. Part # 2756559

Product # 701892

Hach IntelliCAL ISENO318101 Nitrate (NO₃⁻) ISE w/ Calibration Reagents Pack, ISENO3181AP
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Hach IntelliCAL ISENO318101 Nitrate (NO) ISE with Calibration Reagents Pack ISENO3181AP
$1,423.00

Mfr. Part # ISENO3181AP

Product # 703507

Hach IntelliCAL ISENO3181 Nitrate (NO₃⁻) ISE, 3 m cable, ISENO318103
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Hach IntelliCAL ISENO3181 Nitrate (NO) ISE 3m Cable ISENO318103
$1,385.00

Mfr. Part # ISENO318103

Product # 703506

Hach IntelliCAL ISENO3181 Nitrate (NO₃⁻) ISE, 1 m cable, ISENO318101
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Hach IntelliCAL ISENO3181 Nitrate (NO) ISE 1m Cable ISENO318101
$1,348.00

Mfr. Part # ISENO318101

Product # 703505

Hach IntelliCAL ISENH418101 Ammonium (NH₄⁺) ISE w/ Calibration Reagents Pack, ISENH4181AP
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Hach IntelliCAL ISENH418101 Ammonium (NH) ISE with Calibration Reagents Pack ISENH4181AP
$1,337.00

Mfr. Part # ISENH4181AP

Product # 703504

Hach IntelliCAL ISENH318101 Ammonia (NH₃) ISE w/ Calibration Reagents Pack, ISENH3181AP
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Hach IntelliCAL ISENH318101 Ammonia (NH) ISE with Calibration Reagents Pack ISENH3181AP
$1,409.00

Mfr. Part # ISENH3181AP

Product # 703501

Hach IntelliCAL ISENH3181 Ammonia (NH₃) ISE, 3 m cable, ISENH318103
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Hach IntelliCAL ISENH3181 Ammonia (NH) ISE 3m Cable ISENH318103
$1,205.00

Mfr. Part # ISENH318103

Product # 703500

Hach IntelliCAL ISENH4181 Ammonium (NH₄⁺) ISE, 3 m cable, ISENH418103
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Hach IntelliCAL ISENH4181 Ammonium (NH) ISE 3m Cable ISENH418103
$1,316.00

Mfr. Part # ISENH418103

Product # 703503

Hach IntelliCAL ISENH4181 Ammonium (NH₄⁺) ISE, 1 m cable, ISENH418101
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Hach IntelliCAL ISENH4181 Ammonium (NH) ISE 1m Cable ISENH418101
$1,260.00

Mfr. Part # ISENH418101

Product # 703502

Hach IntelliCAL ISENa38101 Sodium (Na⁺) ISE w/ Calibration Reagents Pack, ISENA381AP
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Hach IntelliCAL ISENa38101 Sodium (Na) ISE with Calibration Reagents Pack ISENA381AP
$1,051.00

Mfr. Part # ISENA381AP

Product # 703498

Hach IntelliCAL ISENH3181 Ammonia (NH₃) ISE, 1 m cable, ISENH318101
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Hach IntelliCAL ISENH3181 Ammonia (NH) ISE 1m Cable ISENH318101
$1,155.00

Mfr. Part # ISENH318101

Product # 703499

Hach IntelliCAL ISENa381 Sodium (Na⁺) ISE, 1 m cable, ISENA38101
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Hach IntelliCAL ISENa381 Sodium (Na) ISE 1m Cable ISENA38101
$960.00

Mfr. Part # ISENA38101

Product # 703496

Hach IntelliCAL ISENa381 Sodium (Na⁺) ISE, 3 m cable, ISENA38103
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Hach IntelliCAL ISENa381 Sodium (Na) ISE 3m Cable ISENA38103
$982.00

Mfr. Part # ISENA38103

Product # 703497

Hach IntelliCAL ISEF12101 Fluoride (F⁻) ISE w/ Calibration Reagents Pack, ISEF121AP
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Hach IntelliCAL ISEF12101 Fluoride (F) ISE with Calibration Reagents Pack ISEF121AP
$1,458.00

Mfr. Part # ISEF121AP

Product # 703495

Hach IntelliCAL ISEF121 Fluoride (F⁻) ISE, 3 m cable, ISEF12103
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Hach IntelliCAL ISEF121 Fluoride (F) ISE 3m Cable ISEF12103
$1,347.00

Mfr. Part # ISEF12103

Product # 703494

Hach IntelliCAL ISEF121 Fluoride (F⁻) ISE, 1 m cable, ISEF12101
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Hach IntelliCAL ISEF121 Fluoride (F) ISE 1m Cable ISEF12101
$1,348.00

Mfr. Part # ISEF12101

Product # 703493

Hach IntelliCAL ISECL18101 Chloride (Cl⁻) ISE w/ Calibration Reagents Pack, ISECL181AP
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Hach IntelliCAL ISECL18101 Chloride (Cl) ISE with Calibration Reagents Pack ISECL181AP
$1,375.00

Mfr. Part # ISECL181AP

Product # 703492

Hach IntelliCAL ISECL181 Chloride (Cl⁻) Ion Selective Electrode (ISE), 3 m cable, ISECL18103
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Hach IntelliCAL ISECL181 Chloride (Cl⁻) Ion Selective Electrode (ISE), 3 m cable, ISECL18103
$1,312.00

Mfr. Part # ISECL18103

Product # 703491

Hach HQ411D Laboratory Single Input, pH/mV Meter - pH & ORP, HQ411D
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Hach HQ411D Laboratory Single Input, pH/mV Meter - pH & ORP, HQ411D
$1,409.00

Mfr. Part # HQ411D

Product # 703486

Hach IntelliCAL ISECL181 Chloride (Cl⁻) Ion Selective Electrode (ISE), 1 m cable, ISECL18101
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Hach IntelliCAL ISECL181 Chloride (Cl⁻) Ion Selective Electrode (ISE), 1 m cable, ISECL18101
$1,315.00

Mfr. Part # ISECL18101

Product # 703490

Hach HQ4100 Portable Multi-Meter w/ Rugged Field Gel pH Electrode, 5 m Cable, LEV015.53.41003
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Hach HQ4100 Portable Multi-Meter with Rugged Field Gel pH Electrode 5m Cable LEV015.53.41003
$3,173.00

Mfr. Part # LEV015.53.41003

Product # 703541

Hach HQ4100 Portable Multi-Meter w/ Gel pH Electrode PHC101, 1 m Cable, LEV015.53.41002
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Hach HQ4100 Portable Multi-Meter with Gel pH Electrode PHC101 1m Cable LEV015.53.41002
$2,597.00

Mfr. Part # LEV015.53.41002

Product # 703540

Hach HQ4100 Portable Multi-Meter w/ Gel pH Electrode PHC201, 1 m Cable, LEV015.53.41001
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Hach HQ4100 Portable Multi-Meter with Gel pH Electrode PHC201 1m Cable LEV015.53.41001
$2,540.00

Mfr. Part # LEV015.53.41001

Product # 703539

Hach HQ2200 Portable Multi-Meter w/ Rugged Field Gel pH Electrode, 5 m Cable, LEV015.53.22009
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Hach HQ2200 Portable Multi-Meter with Rugged Field Gel pH Electrode 5m Cable LEV015.53.22009
$3,046.00

Mfr. Part # LEV015.53.22009

Product # 703538

Hach HQ2200 Portable Multi-Meter w/ Rugged Field DO Electrode, 5 m Cable, LEV015.53.22008
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Hach HQ2200 Portable Multi-Meter with Rugged Field DO Electrode 5m Cable LEV015.53.22008
$3,277.00

Mfr. Part # LEV015.53.22008

Product # 703537

Hach HQ2200 Portable Multi-Meter w/ Gel pH PHC101 & DO Electrodes, 1 m Cables, LEV015.53.22005
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Hach HQ2200 Portable Multi-Meter with Gel pH PHC101 & DO Electrodes 1m Cables LEV015.53.22005
$3,502.00

Mfr. Part # LEV015.53.22005

Product # 703535

Hach HQ2200 Portable Multi-Meter w/ Gel pH PHC201 & DO Electrodes, 1 m Cables, LEV015.53.22004
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Hach HQ2200 Portable Multi-Meter with Gel pH PHC201 & DO Electrodes 1m Cables LEV015.53.22004
$3,447.00

Mfr. Part # LEV015.53.22004

Product # 703534

Hach HQ2200 Portable Multi-Meter w/ Gel pH PHC201 & TDS Electrodes, 1 m Cables, LEV015.53.22003
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Hach HQ2200 Portable Multi-Meter with Gel pH PHC201 & TDS Electrodes 1m Cables LEV015.53.22003
$3,099.00

Mfr. Part # LEV015.53.22003

Product # 703533

Hach HQ2200 Portable Meter w/ Rugged Field Gel pH & TDS Electrodes, 5 m Cables, LEV015.53.22002
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Hach HQ2200 Portable Meter with Rugged Field Gel pH & TDS Electrodes 5m Cables LEV015.53.22002
$4,194.00

Mfr. Part # LEV015.53.22002

Product # 703532

Hach HQ2200 Portable Multi-Meter w/ Gel pH PHC101 & TDS Electrodes, 1 m Cables, LEV015.53.22001
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Hach HQ2200 Portable Multi-Meter with Gel pH PHC101 & TDS Electrodes 1m Cables LEV015.53.22001
$3,184.00

Mfr. Part # LEV015.53.22001

Product # 703531

Hach HQ2100 Portable Multi-Meter w/ Rugged Field Gel pH Electrode, 5 m Cable, LEV015.53.21003
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Hach HQ2100 Portable Multi-Meter with Rugged Field Gel pH Electrode 5m Cable LEV015.53.21003
$2,662.00

Mfr. Part # LEV015.53.21003

Product # 703526

Hach HQ2100 Portable Multi-Meter w/ Gel pH Electrode PHC201, 1 m Cable, LEV015.53.21001
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Hach HQ2100 Portable Multi-Meter with Gel pH Electrode PHC201 1m Cable LEV015.53.21001
$2,018.00

Mfr. Part # LEV015.53.21001

Product # 703524

Hach HQ2100 Portable Multi-Meter w/ Gel pH Electrode PHC101, 1 m Cable, LEV015.53.21002
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Hach HQ2100 Portable Multi-Meter with Gel pH Electrode PHC101 1m Cable LEV015.53.21002
$2,080.00

Mfr. Part # LEV015.53.21002

Product # 703525

Hach HQ1110 Portable pH/ORP/mV Meter w/ Rugged Field Gel ORP Electrode, 5 m Cable, LEV015.53.11104
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Hach HQ1110 Portable pH/ORP/mV Meter with Rugged Field Gel ORP Electrode 5m Cable LEV015.53.11104
$2,324.00

Mfr. Part # LEV015.53.11104

Product # 703519

Hach IntelliCAL PHC805 Laboratory General Purpose Refillable Glass pH Electrode, 1 m Cable, PHC80501
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Hach IntelliCAL PHC805 Laboratory General Purpose Refillable Glass pH Electrode 1m Cable PHC80501
$454.00

Mfr. Part # PHC80501

Product # 704007

Hach IntelliCAL PHC745 Laboratory Clogging Media RedRod Refillable pH Electrode, 1 m Cable, PHC74501
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Hach IntelliCAL PHC745 Laboratory Clogging Media RedRod Refillable pH Electrode 1m Cable PHC74501
$854.00

Mfr. Part # PHC74501

Product # 704006

Hach IntelliCAL PHC735 Laboratory Dirty Media RedRod Refillable pH Electrode, 1 m Cable, PHC73501
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Hach IntelliCAL PHC735 Laboratory Dirty Media RedRod Refillable pH Electrode 1m Cable PHC73501
$772.00

Mfr. Part # PHC73501

Product # 704005

Hach IntelliCAL PHC729 Lab Surface Measurements RedRod Refillable pH Electrode, 1 m Cable, PHC72901
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Hach IntelliCAL PHC729 Lab Surface Measurements RedRod Refillable pH Electrode 1m Cable PHC72901
$878.00

Mfr. Part # PHC72901

Product # 704004

Hach IntelliCAL PHC725 Lab Low Ionic Strength RedRod Refillable pH Electrode, 1 m Cable, PHC72501
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Hach IntelliCAL PHC725 Lab Low Ionic Strength RedRod Refillable pH Electrode 1m Cable PHC72501
$667.00

Mfr. Part # PHC72501

Product # 704003

Hach IntelliCAL PHC705 Lab High Alkalinity RedRod Refillable pH Electrode, 1 m Cable, PHC705A01
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Hach IntelliCAL PHC705 Lab High Alkalinity RedRod Refillable pH Electrode 1m Cable PHC705A01
$667.00

Mfr. Part # PHC705A01

Product # 704002

Hach IntelliCAL PHC301 Laboratory General Purposes Refillable pH Electrode, 3 m Cable, PHC30103
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Hach IntelliCAL PHC301 Laboratory General Purposes Refillable pH Electrode 3m Cable PHC30103
$535.00

Mfr. Part # PHC30103

Product # 704000

Hach IntelliCAL PHC281 Water Quality Laboratory Refillable pH Electrode, 3 m Cable, PHC28103
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Hach IntelliCAL PHC281 Water Quality Laboratory Refillable pH Electrode 3m Cable PHC28103
$774.00

Mfr. Part # PHC28103

Product # 703998

Hach IntelliCAL PHC201 Laboratory General Purposes Gel Filled pH Electrode, 3 m Cable, PHC20103
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Hach IntelliCAL PHC201 Laboratory General Purposes Gel Filled pH Electrode 3m Cable PHC20103
$449.00

Mfr. Part # PHC20103

Product # 703996