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358 Products

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.

358 Products

Hach Chlorine (Free & Total) & pH Test Kit, Model CN-67, 1411100
$186.00

Mfr. Part # 1411100

Product # 700004

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
$23.65

Mfr. Part # PC4000-P

Product # 706995

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
$37.50

Mfr. Part # OR4600-P

Product # 707123

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
$37.50

Mfr. Part # OR4200-P

Product # 707121

Hach Shroud, HQ Series Probe, 5832400
$104.00

Mfr. Part # 5832400

Product # 702291

Hach Accessory Box, North America, HQ Series, LEZ015.53.A001A
$155.00

Mfr. Part # LEZ015.53.A001A

Product # 703551

Hach Replacement Sensor for Pocket Pro⁺ ORP Tester, 9532101
$270.00

Mfr. Part # 9532101

Product # 702550

Hach Pocket Pro+ ORP Tester w/ Replaceable Sensor, 9532100
$526.00

Mfr. Part # 9532100

Product # 702549

Hach Replacement Sensor for Pocket Pro⁺ pH Tester, 9532001
$152.00

Mfr. Part # 9532001

Product # 702548

Hach Pocket Pro ORP Tester, 9531100
$291.00

Mfr. Part # 9531100

Product # 702539

Hach HQd Field Meter Protective Caps (for use w/ HQd Protective Glove), 9345200
$29.15

Mfr. Part # 9345200

Product # 702502

Hach Wrist Strap & Dust Plugs for Portable HQ Series Meter, LEZ015.99.A005A
$20.45

Mfr. Part # LEZ015.99.A005A

Product # 703558

Hach Protective Glove for Portable HQ Series Meter, LEZ015.99.A004A
$98.45

Mfr. Part # LEZ015.99.A004A

Product # 703557

Hach Kick Stand & Hand Strap for Portable HQ Series Meter, LEZ015.99.A003A
$44.95

Mfr. Part # LEZ015.99.A003A

Product # 703556

Hach Portable HQ Series Standard Field Case for Standard Probes, LEZ015.99.A001A
$235.00

Mfr. Part # LEZ015.99.A001A

Product # 703554

Hach Portable HQ Series Field Case for Rugged Probes w/ Extended Cable Lengths, LEZ015.99.A002A
$284.00

Mfr. Part # LEZ015.99.A002A

Product # 703555

Hach Replacement Power Supply for HQ Series Meter, US, LEZ015.99.00006
$41.75

Mfr. Part # LEZ015.99.00006

Product # 703553

Hach USB Cable for Portable HQ Series Meter, LEZ015.99.00002
$37.89

Mfr. Part # LEZ015.99.00002

Product # 703552

Hach Sension+ 9663 Ammonium Combination Ion Selective Electrode (ISE), LZW9663C.97.002
$1,267.00

Mfr. Part # LZW9663C.97.002

Product # 703839

Hach Sension+ 9662 Nitrate Combination Ion Selective Electrode (ISE), LZW9662C.97.002
$1,307.00

Mfr. Part # LZW9662C.97.002

Product # 703836

Hach Sension+ 9662 Nitrate Ion Selective Electrode (ISE) – sensor only, LZW9662.97.0002
$1,043.00

Mfr. Part # LZW9662.97.0002

Product # 703834

Hach Sension+ 9655 Fluoride Combination Ion Selective Electrode (ISE), LZW9655C.97.002
$1,307.00

Mfr. Part # LZW9655C.97.002

Product # 703833

Hach Sension+ 9655C Fluoride ISE Analysis Package, LZW9655AP.97.02
$1,449.00

Mfr. Part # LZW9655AP.97.02

Product # 703832

Hach Sension+ 9655 Fluoride Ion Selective Electrode (ISE) – sensor only, LZW9655.97.0002
$1,043.00

Mfr. Part # LZW9655.97.0002

Product # 703831

Hach Sension+ 9652 Chloride Ion Selective Electrode (ISE) – sensor only, LZW9652.97.0002
$1,043.00

Mfr. Part # LZW9652.97.0002

Product # 703828

Hach Sension+ 9650 Sodium Ion Selective Electrode (ISE) – sensor only, LZW9650.97.0002
$793.00

Mfr. Part # LZW9650.97.0002

Product # 703827

Hach Holder & clamp for one sensor, for laboratory Sension+, LZW9267.99
$218.00

Mfr. Part # LZW9267.99

Product # 703811

Hach Replacement pH sensor for Sension+ 5049 multisensor, LZW9171.99
$319.00

Mfr. Part # LZW9171.99

Product # 703808

Hach 3 each 10 mL printed tubes, for sensION+ portable pH calibration, LZW9137.97
$19.19

Mfr. Part # LZW9137.97

Product # 703803

Hach RS232 cable, for Sension+ laboratory instruments, LZW9135.99
$126.00

Mfr. Part # LZW9135.99

Product # 703801

Hach RS232 cable for Sension+ laboratory, w/ USB adapter, LZW9135USB.99
$242.00

Mfr. Part # LZW9135USB.99

Product # 703802

Hach 3 each 50 mL printed containers for Sension+ laboratory pH calibration, LZW9110.97
$19.29

Mfr. Part # LZW9110.97

Product # 703798

Hach Sension+ 5057 Laboratory ORP Electrode for General Applications, LZW5057.97.0002
$581.00

Mfr. Part # LZW5057.97.0002

Product # 703784

Hach Sension+ 5056 Laboratory ORP Electrode for General Applications, LZW5056.97.0002
$580.00

Mfr. Part # LZW5056.97.0002

Product # 703783

Hach Sension+ 5052T Portable Combination pH Electrode for Difficult Applications, LZW5052T.97.002
$614.00

Mfr. Part # LZW5052T.97.002

Product # 703781

Hach sensION+ 5055 Portable ORP Electrode for General Purpose Applications, LZW5055.97.0002
$428.00

Mfr. Part # LZW5055.97.0002

Product # 703782

Hach Sension+ pH Gel Electrode w/ Ceramic Diaphragm, General Use, LZW5050T.97.002
$312.00

Mfr. Part # LZW5050T.97.002

Product # 703779

Hach Sension+ 5051T Portable Combination pH Electrode for Wastewater Applications, LZW5051T.97.002
$633.00

Mfr. Part # LZW5051T.97.002

Product # 703780

Hach Sension+ 5044 Reference Electrode for use w/ Ion Selective Electrodes, LZW5044.97.0002
$497.00

Mfr. Part # LZW5044.97.0002

Product # 703775

Hach Sension+ 5045 portable multi-parameter electrode: pH, ORP & temperature, LZW5045.97.0002
$692.00

Mfr. Part # LZW5045.97.0002

Product # 703776

Hach Sension+ 5021T Laboratory Combination pH Electrode for Difficult Applications, LZW5021T.97.002
$696.00

Mfr. Part # LZW5021T.97.002

Product # 703774

Hach Sension+ 5011T Laboratory Combination pH Electrode for Wastewater Applications, LZW5011T.97.002
$590.00

Mfr. Part # LZW5011T.97.002

Product # 703771

Hach Sension+ 5010T laboratory combination pH electrode for general applications, LZW5010T.97.002
$292.00

Mfr. Part # LZW5010T.97.002

Product # 703770

Hach Sension+ pH electrode, for universal use, glass body, LZW5014.97.0002
$420.00

Mfr. Part # LZW5014.97.0002

Product # 703772

Hach Sension+ 5014T pH Liquid Combination Electrode, w/ silver ion barrier, LZW5014T.97.002
$523.00

Mfr. Part # LZW5014T.97.002

Product # 703773