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pH & ORP Electrodes

pH and ORP (Oxidation-Reduction Potential) electrodes are specialized sensors used in a wide range of chemical, biological, and environmental applications to measure the acidity or alkalinity of a solution and its oxidation-reduction potential, respectively. These electrodes are critical components in both field and laboratory settings, facilitating precise monitoring and control of pH and ORP levels in processes such as water treatment, food and beverage production, and chemical manufacturing.

pH electrodes function by measuring the hydrogen ion activity in a solution, providing a pH value as an output, while ORP electrodes measure the ability of a solution to oxidize or reduce another substance, indicating the solution's overall health or cleanliness. Both types of electrodes are designed for durability and accuracy, often housed in rugged casings that resist harsh conditions and chemical corrosion. Advanced models may feature built-in temperature sensors for automatic temperature compensation, ensuring reliable measurements across a range of environmental conditions and applications.

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Ohaus STDO21-1 Starter Electrodes

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Backed by our commitment to accurate and precise measurement, the OHAUS Starter Series of electrodes are designed to produce exact results time and...

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Ohaus STDO21-5 Starter Electrodes

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Backed by our commitment to accurate and precise measurement, the OHAUS Starter Series of electrodes are designed to produce exact results time and...

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Ohaus ST400D-G Starter 400D DO Portable, 0 to 20 ppm

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For over a century, OHAUS has perfected the art of measurement through our line of weighing products. Taking the same approach to our weighing equi...

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$1,784.00
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$167.00
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$114.81
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$114.81

Ohaus ST322 Starter Electrodes, 0.00 to 14 pH

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Backed by our commitment to accurate and precise measurement, the OHAUS Starter Series of electrodes are designed to produce exact results time and...

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$114.81
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$114.81
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$744.00
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$511.50
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$511.50

Ohaus ST400D-B Starter 400D DO Portable, 0 to 20 ppm

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For over a century, OHAUS has perfected the art of measurement through our line of weighing products. Taking the same approach to our weighing equi...

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$511.50
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$938.00
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$644.88
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Ohaus ST400M-B Starter 400M pH & Conductivity Portable

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$938.00
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$644.88
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$1,195.00
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$821.56
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Ohaus ST400M-G Starter 400M pH & Conductivity Portable

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Starter 400M Multi Parameter Portable Water Analysis Meters are robust, lightweight, battery-operated units with waterproof housing, which are idea...

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$821.56
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$230.00
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$158.13
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$158.13

Ohaus ST410 pH Electrode Starter, glass, 0.00 to 14 pH

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Backed by our commitment to accurate and precise measurement, the OHAUS Starter Series of electrodes are designed to produce exact results time and...

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$230.00
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$158.13
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$158.13
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$224.00
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$224.00
$154.00
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$154.00

Ohaus STCON5 Starter Electrode with Glass Shaft, 1 m Cable

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Backed by our commitment to accurate and precise measurement, the OHAUS Starter Series of electrodes are designed to produce exact results time and...

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$224.00
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$224.00
$154.00
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$154.00
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$358.00
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$358.00
$246.13
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$246.13

Ohaus ST420 Starter Electrode, 2.00 to 12.00 pH

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Backed by our commitment to accurate and precise measurement, the OHAUS Starter Series of electrodes are designed to produce exact results time and...

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$358.00
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$358.00
$246.13
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$246.13
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$305.00
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$305.00
$209.69
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$209.69

Ohaus ST280 pH Starter Electrode

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Backed by our commitment to accurate and precise measurement, the OHAUS Starter Series of electrodes are designed to produce exact results time and...

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$209.69
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$209.69
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$222.00
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$222.00
$152.63
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$152.63

Ohaus ST272 Starter Electrode

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Backed by our commitment to accurate and precise measurement, the OHAUS Starter Series of electrodes are designed to produce exact results time and...

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$222.00
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$222.00
$152.63
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$152.63
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$185.00
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$185.00
$127.19
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$127.19

Ohaus ST310 Starter Electrode

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Backed by our commitment to accurate and precise measurement, the OHAUS Starter Series of electrodes are designed to produce exact results time and...

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$127.19
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$185.00
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$185.00
$127.19
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$127.19

Ohaus ST320 Starter Electrode

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Backed by our commitment to accurate and precise measurement, the OHAUS Starter Series of electrodes are designed to produce exact results time and...

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$127.19
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$127.19
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$229.00
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$229.00
$157.44
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$157.44

Ohaus ST350 Starter Electrode

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Backed by our commitment to accurate and precise measurement, the OHAUS Starter Series of electrodes are designed to produce exact results time and...

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$157.44
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$157.44
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$349.00
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$349.00
$239.94
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Ohaus STMICRO8 Starter Electrode

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Backed by our commitment to accurate and precise measurement, the OHAUS Starter Series of electrodes are designed to produce exact results time and...

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$239.94
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$239.94
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$123.00
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$123.00
$84.56
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Ohaus STORP1 Starter Electrode

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Backed by our commitment to accurate and precise measurement, the OHAUS Starter Series of electrodes are designed to produce exact results time and...

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$123.00
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$123.00
$84.56
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$84.56
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$190.00
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$190.00
$130.63
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Ohaus STREF1 Starter Electrode

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Backed by our commitment to accurate and precise measurement, the OHAUS Starter Series of electrodes are designed to produce exact results time and...

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$190.00
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$130.63
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$130.63
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$86.00
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$86.00
$59.13
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$59.13

Ohaus ST210 Starter Electrode

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Backed by our commitment to accurate and precise measurement, the OHAUS Starter Series of electrodes are designed to produce exact results time and...

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$86.00
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$59.13
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$59.13
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$161.00
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$161.00
$110.69
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$110.69

Ohaus ST230 Starter Electrode

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Backed by our commitment to accurate and precise measurement, the OHAUS Starter Series of electrodes are designed to produce exact results time and...

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$161.00
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$161.00
$110.69
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$110.69
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$178.00
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$178.00
$122.38
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$122.38

Ohaus STPURE Starter Electrode

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Backed by our commitment to accurate and precise measurement, the OHAUS Starter Series of electrodes are designed to produce exact results time and...

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$178.00
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$178.00
$122.38
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$122.38
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$215.00
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$215.00
$147.81
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$147.81

Ohaus ST260 Starter Electrode

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Backed by our commitment to accurate and precise measurement, the OHAUS Starter Series of electrodes are designed to produce exact results time and...

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$215.00
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$215.00
$147.81
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$147.81
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$327.00
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$327.00
$224.81
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$224.81

Ohaus STMICRO5 Starter Electrode

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Backed by our commitment to accurate and precise measurement, the OHAUS Starter Series of electrodes are designed to produce exact results time and...

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$327.00
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$327.00
$224.81
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$224.81
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$210.00
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$210.00
$144.38
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$144.38

Ohaus STSURF Starter Electrode

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Backed by our commitment to accurate and precise measurement, the OHAUS Starter Series of electrodes are designed to produce exact results time and...

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$210.00
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$210.00
$144.38
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$144.38
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$106.00
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$106.00
$72.88
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$72.88

Ohaus STTEMP30 Starter Electrode

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Backed by our commitment to accurate and precise measurement, the OHAUS Starter Series of electrodes are designed to produce exact results time and...

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$106.00
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$106.00
$72.88
$72.88 - $72.88
$72.88
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$322.00
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$322.00
$221.38
$221.38 - $221.38
$221.38

Ohaus STORP2 Starter Electrode

Ohaus
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Backed by our commitment to accurate and precise measurement, the OHAUS Starter Series of electrodes are designed to produce exact results time and...

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$322.00
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$322.00
$221.38
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$221.38
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