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 Chlorine (Free & Total) & pH Test Kit, Model CN-67, 1411100
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Hach Chlorine (Free & Total) & pH Test Kit, Model CN-67, 1411100
$192.00

Mfr. Part # 1411100

Product # 700004

Core & Main Potassium Chloride, 4M, Saturated w/Silver Chloride, 500 mL
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Core & Main Potassium Chloride, 4M, Saturated w/Silver Chloride, 500 mL
$27.70

Mfr. Part # PC4001-P

Product # 706996

Core & Main Potassium Chloride, 4M, Saturated, 500 mL
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Core & Main Potassium Chloride, 4M, Saturated, 500 mL
$23.65

Mfr. Part # PC4000-P

Product # 706995

Core & Main Potassium Chloride, 3M, 500 mL
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Core & Main Potassium Chloride, 3M, 500 mL
$22.45

Mfr. Part # PC3000-P

Product # 706994

Core & Main ORP Standard, 600 mV +/-5% @ 25°C, 500 mL
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Core & Main ORP Standard, 600 mV +/-5% @ 25°C, 500 mL
$37.50

Mfr. Part # OR4600-P

Product # 707123

Core & Main ORP Standard, 400 mV +/-5% @ 25°C, 500 mL
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Core & Main ORP Standard, 400 mV +/-5% @ 25°C, 500 mL
$37.50

Mfr. Part # OR4400-P

Product # 707122

Core & Main ORP Standard, 200 mV +/-5% @ 25°C, 500 mL
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Core & Main ORP Standard, 200 mV +/-5% @ 25°C, 500 mL
$37.50

Mfr. Part # OR4200-P

Product # 707121

Hach Shroud, HQ Series Probe, 5832400
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Hach Shroud, HQ Series Probe, 5832400
$108.00

Mfr. Part # 5832400

Product # 702291

Hach Accessory Box, North America, HQ Series, LEZ015.53.A001A
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Hach Accessory Box, North America, HQ Series, LEZ015.53.A001A
$160.00

Mfr. Part # LEZ015.53.A001A

Product # 703551

Hach Replacement Sensor for Pocket Pro⁺ ORP Tester, 9532101
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Hach Pocket Pro ORP Tester Replacement Sensor 9532101
$279.00

Mfr. Part # 9532101

Product # 702550

Hach Pocket Pro+ ORP Tester w/ Replaceable Sensor, 9532100
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Hach Pocket Pro+ ORP Tester with Replaceable Sensor 9532100
$542.00

Mfr. Part # 9532100

Product # 702549

Hach Replacement Sensor for Pocket Pro⁺ pH Tester, 9532001
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Hach Pocket Pro pH Tester Replacement Sensor 9532001
$157.00

Mfr. Part # 9532001

Product # 702548

Hach Pocket Pro ORP Tester, 9531100
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Hach Pocket Pro ORP Tester, 9531100
$300.00

Mfr. Part # 9531100

Product # 702539

Hach HQd Field Meter Protective Caps (for use w/ HQd Protective Glove), 9345200
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Hach HQd Field Meter Protective Caps (for use with HQd Protective Glove) 9345200
$30.05

Mfr. Part # 9345200

Product # 702502

Hach Wrist Strap & Dust Plugs for Portable HQ Series Meter, LEZ015.99.A005A
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Hach Wrist Strap & Dust Plugs for Portable HQ Series Meter, LEZ015.99.A005A
$21.09

Mfr. Part # LEZ015.99.A005A

Product # 703558

Hach Protective Glove for Portable HQ Series Meter, LEZ015.99.A004A
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Hach Protective Glove for Portable HQ Series Meter, LEZ015.99.A004A
$102.00

Mfr. Part # LEZ015.99.A004A

Product # 703557

Hach Kick St& & H& Strap for Portable HQ Series Meter, LEZ015.99.A003A
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Hach Kick Stand & Hand Strap for Portable HQ Series Meter, LEZ015.99.A003A
$46.30

Mfr. Part # LEZ015.99.A003A

Product # 703556

Hach Portable HQ Series Standard Field Case for Standard Probes, LEZ015.99.A001A
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Hach Portable HQ Series Standard Field Case for Standard Probes, LEZ015.99.A001A
$243.00

Mfr. Part # LEZ015.99.A001A

Product # 703554

Hach Portable HQ Series Field Case for Rugged Probes w/ Extended Cable Lengths, LEZ015.99.A002A
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Hach Portable HQ Series Field Case for Rugged Probes with Extended Cable Lengths LEZ015.99.A002A
$293.00

Mfr. Part # LEZ015.99.A002A

Product # 703555

Hach Replacement Power Supply for HQ Series Meter, US, LEZ015.99.00006
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Hach Replacement Power Supply for HQ Series Meter, US, LEZ015.99.00006
$43.05

Mfr. Part # LEZ015.99.00006

Product # 703553

Hach USB Cable for Portable HQ Series Meter, LEZ015.99.00002
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Hach USB Cable for Portable HQ Series Meter, LEZ015.99.00002
$39.05

Mfr. Part # LEZ015.99.00002

Product # 703552

Hach Sension+ 9663 Ammonium Combination Ion Selective Electrode (ISE), LZW9663C.97.002
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Hach Sension+ 9663 Ammonium Combination Ion Selective Electrode (ISE), LZW9663C.97.002
$1,306.00

Mfr. Part # LZW9663C.97.002

Product # 703839

Hach Sension+ 9662 Nitrate Combination Ion Selective Electrode (ISE), LZW9662C.97.002
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Hach Sension+ 9662 Nitrate Combination Ion Selective Electrode (ISE), LZW9662C.97.002
$1,347.00

Mfr. Part # LZW9662C.97.002

Product # 703836

Hach Sension+ 9655 Fluoride Combination Ion Selective Electrode (ISE), LZW9655C.97.002
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Hach Sension+ 9655 Fluoride Combination Ion Selective Electrode (ISE), LZW9655C.97.002
$1,347.00

Mfr. Part # LZW9655C.97.002

Product # 703833

Hach Sension+ 9655C Fluoride ISE Analysis Package, LZW9655AP.97.02
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Hach Sension+ 9655C Fluoride ISE Analysis Package, LZW9655AP.97.02
$1,493.00

Mfr. Part # LZW9655AP.97.02

Product # 703832

Hach Sension+ 9655 Fluoride Ion Selective Electrode (ISE) – sensor only, LZW9655.97.0002
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Hach Sension+ 9655 Fluoride Ion Selective Electrode (ISE) – Sensor Only LZW9655.97.0002
$1,075.00

Mfr. Part # LZW9655.97.0002

Product # 703831

Hach Sension+ 9652 Chloride Ion Selective Electrode (ISE) – sensor only, LZW9652.97.0002
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Hach Sension+ 9652 Chloride Ion Selective Electrode (ISE) – Sensor Only LZW9652.97.0002
$1,075.00

Mfr. Part # LZW9652.97.0002

Product # 703828

Hach Sension+ 9650 Sodium Ion Selective Electrode (ISE) – sensor only, LZW9650.97.0002
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Hach Sension+ 9650 Sodium Ion Selective Electrode (ISE) – Sensor Only LZW9650.97.0002
$817.00

Mfr. Part # LZW9650.97.0002

Product # 703827

Hach Holder & clamp for one sensor, for laboratory Sension+, LZW9267.99
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Hach Holder & Clamp For One Sensor For Laboratory Sension+ LZW9267.99
$225.00

Mfr. Part # LZW9267.99

Product # 703811

Hach Replacement pH sensor for Sension+ 5049 multisensor, LZW9171.99
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Hach Replacement pH sensor for Sension+ 5049 Multisensor LZW9171.99
$329.00

Mfr. Part # LZW9171.99

Product # 703808

Hach 3 each 10 mL printed tubes, for sensION+ portable pH calibration, LZW9137.97
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Hach 3 each 10 mL Printed Tubes for sensION+ Portable pH Calibration LZW9137.97
$19.79

Mfr. Part # LZW9137.97

Product # 703803

Hach 3 each 50 mL printed containers for Sension+ laboratory pH calibration, LZW9110.97
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Hach 3 each 50 mL Printed Containers for Sension+ Laboratory pH Calibration LZW9110.97
$19.89

Mfr. Part # LZW9110.97

Product # 703798

Hach Sension+ 5057 Laboratory ORP Electrode for General Applications, LZW5057.97.0002
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Hach Sension+ 5057 Laboratory ORP Electrode for General Applications, LZW5057.97.0002
$599.00

Mfr. Part # LZW5057.97.0002

Product # 703784

Hach Sension+ 5056 Laboratory ORP Electrode for General Applications, LZW5056.97.0002
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Hach Sension+ 5056 Laboratory ORP Electrode for General Applications, LZW5056.97.0002
$598.00

Mfr. Part # LZW5056.97.0002

Product # 703783

Hach Sension+ 5052T Portable Combination pH Electrode for Difficult Applications, LZW5052T.97.002
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Hach Sension+ 5052T Portable Combination pH Electrode for Difficult Applications, LZW5052T.97.002
$633.00

Mfr. Part # LZW5052T.97.002

Product # 703781

Hach sensION+ 5055 Portable ORP Electrode for General Purpose Applications, LZW5055.97.0002
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Hach sensION+ 5055 Portable ORP Electrode for General Purpose Applications, LZW5055.97.0002
$441.00

Mfr. Part # LZW5055.97.0002

Product # 703782

Hach Sension+ pH Gel Electrode w/ Ceramic Diaphragm, General Use, LZW5050T.97.002
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Hach Sension+ pH Gel Electrode with Ceramic Diaphragm General Use LZW5050T.97.002
$322.00

Mfr. Part # LZW5050T.97.002

Product # 703779

Hach Sension+ 5051T Portable Combination pH Electrode for Wastewater Applications, LZW5051T.97.002
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Hach Sension+ 5051T Portable Combination pH Electrode for Wastewater Applications, LZW5051T.97.002
$652.00

Mfr. Part # LZW5051T.97.002

Product # 703780

Hach Sension+ 5044 Reference Electrode for use w/ Ion Selective Electrodes, LZW5044.97.0002
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Hach Sension+ 5044 Reference Electrode for Use w/ Ion Selective Electrodes LZW5044.97.0002
$512.00

Mfr. Part # LZW5044.97.0002

Product # 703775

Hach Sension+ 5045 portable multi-parameter electrode: pH, ORP & temperature, LZW5045.97.0002
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Hach Sension+ 5045 Portable Multi-Parameter Electrode: pH ORP & Temperature LZW5045.97.0002
$713.00

Mfr. Part # LZW5045.97.0002

Product # 703776

Hach Sension+ 5021T Laboratory Combination pH Electrode for Difficult Applications, LZW5021T.97.002
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Hach Sension+ 5021T Laboratory Combination pH Electrode for Difficult Applications, LZW5021T.97.002
$717.00

Mfr. Part # LZW5021T.97.002

Product # 703774

Hach Sension+ 5011T Laboratory Combination pH Electrode for Wastewater Applications, LZW5011T.97.002
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Hach Sension+ 5011T Laboratory Combination pH Electrode for Wastewater Applications, LZW5011T.97.002
$608.00

Mfr. Part # LZW5011T.97.002

Product # 703771

Hach Sension+ 5010T laboratory combination pH electrode for general applications, LZW5010T.97.002
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Hach Sension+ 5010T Laboratory Combination pH Electrode for General Applications LZW5010T.97.002
$301.00

Mfr. Part # LZW5010T.97.002

Product # 703770

Hach Sension+ pH electrode, for universal use, glass body, LZW5014.97.0002
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Hach Sension+ pH Electrode for Universal Use Glass Body LZW5014.97.0002
$433.00

Mfr. Part # LZW5014.97.0002

Product # 703772

Hach Sension+ 5014T pH Liquid Combination Electrode, w/ silver ion barrier, LZW5014T.97.002
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Hach Sension+ 5014T pH Liquid Combination Electrode w/ Silver Ion Barrier LZW5014T.97.002
$539.00

Mfr. Part # LZW5014T.97.002

Product # 703773

Hach USB & A/C Power Adapter kit, HQd Series Meters, 5826300
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Hach USB & A/C Power Adapter Kit HQd Series Meters 5826300
$240.00

Mfr. Part # 5826300

Product # 702286

Hach Hardness, Iron, & pH Test Kit, Model HA-62A, 183701
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Hach Hardness, Iron, & pH Test Kit, Model HA-62A, 183701
$267.00

Mfr. Part # 183701

Product # 700789

Hach Hardness, Iron, & pH Test Kit, Model HA-62, 183700
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Hach Hardness, Iron, & pH Test Kit, Model HA-62, 183700
$283.00

Mfr. Part # 183700

Product # 700788