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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.

Original price $1,435.00
Original price $1,435.00 - Original price $1,435.00
Original price $1,435.00
Current price $986.56
$986.56 - $986.56
Current price $986.56

Ohaus STDO21-1 Starter Electrodes

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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Original price $1,435.00
Original price $1,435.00 - Original price $1,435.00
Original price $1,435.00
Current price $986.56
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Current price $986.56
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Original price $1,480.00
Original price $1,480.00 - Original price $1,480.00
Original price $1,480.00
Current price $1,017.50
$1,017.50 - $1,017.50
Current price $1,017.50

Ohaus STDO21-5 Starter Electrodes

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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Original price $1,480.00
Original price $1,480.00 - Original price $1,480.00
Original price $1,480.00
Current price $1,017.50
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Current price $1,017.50
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Original price $1,784.00
Original price $1,784.00 - Original price $1,784.00
Original price $1,784.00
Current price $1,226.50
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Current price $1,226.50

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

Ohaus
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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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Original price $1,784.00
Original price $1,784.00 - Original price $1,784.00
Original price $1,784.00
Current price $1,226.50
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Current price $1,226.50
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Original price $167.00
Original price $167.00 - Original price $167.00
Original price $167.00
Current price $114.81
$114.81 - $114.81
Current price $114.81

Ohaus ST322 Starter Electrodes, 0.00 to 14 pH

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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Original price $167.00
Original price $167.00 - Original price $167.00
Original price $167.00
Current price $114.81
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Current price $114.81
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Original price $744.00
Original price $744.00 - Original price $744.00
Original price $744.00
Current price $511.50
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Current price $511.50

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

Ohaus
In stock

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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Original price $744.00
Original price $744.00 - Original price $744.00
Original price $744.00
Current price $511.50
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Current price $511.50
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Original price $938.00
Original price $938.00 - Original price $938.00
Original price $938.00
Current price $644.88
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Current price $644.88

Ohaus ST400M-B Starter 400M pH & Conductivity Portable

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In stock

Original price $938.00
Original price $938.00 - Original price $938.00
Original price $938.00
Current price $644.88
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Current price $644.88
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Original price $1,195.00
Original price $1,195.00 - Original price $1,195.00
Original price $1,195.00
Current price $821.56
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Current price $821.56

Ohaus ST400M-G Starter 400M pH & Conductivity Portable

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In stock

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

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Original price $1,195.00
Original price $1,195.00 - Original price $1,195.00
Original price $1,195.00
Current price $821.56
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Current price $821.56
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Original price $230.00
Original price $230.00 - Original price $230.00
Original price $230.00
Current price $158.13
$158.13 - $158.13
Current price $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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Original price $230.00
Original price $230.00 - Original price $230.00
Original price $230.00
Current price $158.13
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Current price $158.13
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Original price $224.00
Original price $224.00 - Original price $224.00
Original price $224.00
Current price $154.00
$154.00 - $154.00
Current price $154.00

Ohaus STCON5 Starter Electrode with Glass Shaft, 1 m Cable

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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Original price $224.00
Original price $224.00 - Original price $224.00
Original price $224.00
Current price $154.00
$154.00 - $154.00
Current price $154.00
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Original price $358.00
Original price $358.00 - Original price $358.00
Original price $358.00
Current price $246.13
$246.13 - $246.13
Current price $246.13

Ohaus ST420 Starter Electrode, 2.00 to 12.00 pH

Ohaus
In stock

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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Original price $358.00
Original price $358.00 - Original price $358.00
Original price $358.00
Current price $246.13
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Current price $246.13
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Original price $305.00
Original price $305.00 - Original price $305.00
Original price $305.00
Current price $209.69
$209.69 - $209.69
Current price $209.69

Ohaus ST280 pH Starter Electrode

Ohaus
In stock

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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Original price $305.00
Original price $305.00 - Original price $305.00
Original price $305.00
Current price $209.69
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Current price $209.69
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Original price $222.00
Original price $222.00 - Original price $222.00
Original price $222.00
Current price $152.63
$152.63 - $152.63
Current price $152.63

Ohaus ST272 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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Original price $222.00
Original price $222.00 - Original price $222.00
Original price $222.00
Current price $152.63
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Current price $152.63
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Original price $185.00
Original price $185.00 - Original price $185.00
Original price $185.00
Current price $127.19
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Current price $127.19

Ohaus ST310 Starter Electrode

Ohaus
In stock

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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Original price $185.00
Original price $185.00 - Original price $185.00
Original price $185.00
Current price $127.19
$127.19 - $127.19
Current price $127.19
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Original price $185.00
Original price $185.00 - Original price $185.00
Original price $185.00
Current price $127.19
$127.19 - $127.19
Current price $127.19

Ohaus ST320 Starter Electrode

Ohaus
In stock

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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Original price $185.00
Original price $185.00 - Original price $185.00
Original price $185.00
Current price $127.19
$127.19 - $127.19
Current price $127.19
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Original price $229.00
Original price $229.00 - Original price $229.00
Original price $229.00
Current price $157.44
$157.44 - $157.44
Current price $157.44

Ohaus ST350 Starter Electrode

Ohaus
In stock

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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Original price $229.00
Original price $229.00 - Original price $229.00
Original price $229.00
Current price $157.44
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Current price $157.44
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Original price $349.00
Original price $349.00 - Original price $349.00
Original price $349.00
Current price $239.94
$239.94 - $239.94
Current price $239.94

Ohaus STMICRO8 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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Original price $349.00
Original price $349.00 - Original price $349.00
Original price $349.00
Current price $239.94
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Current price $239.94
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Original price $123.00
Original price $123.00 - Original price $123.00
Original price $123.00
Current price $84.56
$84.56 - $84.56
Current price $84.56

Ohaus STORP1 Starter Electrode

Ohaus
In stock

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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Original price $123.00
Original price $123.00 - Original price $123.00
Original price $123.00
Current price $84.56
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Current price $84.56
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Original price $190.00
Original price $190.00 - Original price $190.00
Original price $190.00
Current price $130.63
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Current price $130.63

Ohaus STREF1 Starter Electrode

Ohaus
In stock

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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Original price $190.00
Original price $190.00 - Original price $190.00
Original price $190.00
Current price $130.63
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Current price $130.63
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Original price $86.00
Original price $86.00 - Original price $86.00
Original price $86.00
Current price $59.13
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Current price $59.13

Ohaus ST210 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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Original price $86.00
Original price $86.00 - Original price $86.00
Original price $86.00
Current price $59.13
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Current price $59.13
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Original price $161.00
Original price $161.00 - Original price $161.00
Original price $161.00
Current price $110.69
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Current price $110.69

Ohaus ST230 Starter Electrode

Ohaus
In stock

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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Original price $161.00
Original price $161.00 - Original price $161.00
Original price $161.00
Current price $110.69
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Current price $110.69
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Original price $178.00
Original price $178.00 - Original price $178.00
Original price $178.00
Current price $122.38
$122.38 - $122.38
Current price $122.38

Ohaus STPURE Starter Electrode

Ohaus
In stock

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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Original price $178.00
Original price $178.00 - Original price $178.00
Original price $178.00
Current price $122.38
$122.38 - $122.38
Current price $122.38
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