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Water Analysis Meters & Electrodes

Welcome to Liberty Scales, where we are dedicated to expanding the potential of our customers. As an authorized dealership of Ohaus products, we proudly offer a range of Water Analysis Meters & Electrodes designed to deliver precise and accurate measurements for your laboratory needs. With our commitment to American ingenuity, we bring you the best-in-class instruments that enable you to take quantum leaps in your research and analysis.


Starter 5000 pH Bench: Experience high-performance and accurate everyday measurements with the Starter 5000 pH Bench. This user-friendly bench meter features an innovative design, including an adjustable stand-alone electrode holder and a large touch-screen, backlit LCD. With a 1000-item library for easy data recall, flexible pH analysis from 10 sensors, and multiple calibration storage options, this bench meter empowers you with unparalleled versatility. Its durability is unmatched, with an IP54 housing, an in-use cover, and a built-in USB port for seamless connectivity.


AQUASEARCHER™ AB41PH Bench Meter: The AB41PH Bench Meter offers exceptional accuracy and repeatability for advanced research-grade pH measurements. With selectable resolution and an intelligent i-Steward system, this Meter ensures consistent results. The 6.5-inch large LCD and touch keypad provide precise control and ease of use. Equipped with a 1000-item memory and password management for GLP documentation and RS232 and USB interfaces for data output, the AB41PH is the perfect companion for your demanding applications.


AQUASEARCHER™ AB33M1 Bench Meter: Simplify multi-parameter measurements with the AB33M1 Bench Meter. Capable of measuring up to 7 parameters, including pH, ORP, Conductivity, TDS, salinity, resistivity, and temperature, this Meter utilizes two independent measuring channels for simultaneous operation. The multifunctional touch keypads and intelligent i-Steward ensure accurate results and effortless operation. With a 1000-item memory for measurement and calibration, RS232, and USB connectivity, efficient data documentation and external device connection become seamless processes.


AQUASEARCHER™ AB33PH Bench Meter: Trust the highly reliable AB33PH Bench Meter for standard laboratory pH applications. Its user-friendly design and multifunctional touch keypads make pH measurement simple and fast—the intelligent i-Steward monitor electrode conditions to ensure accurate results. Auto endpoint mode and auto buffer recognition streamline calibration procedures, while the 1000-item memory and adjustable stand-alone electrode holder enhance data documentation and convenience. Enjoy connectivity options through RS232 and USB interfaces for seamless integration.


AQUASEARCHER™ AB33EC Bench Meter: Experience exceptional reliability in Conductivity, TDS, salinity, and resistivity measurements with the AB33EC Bench Meter. With selectable reading reference temperatures and automatic temperature compensation, this Meter guarantees accurate results. Its features, such as auto-stop, adjustable TDS factor, and compatibility with 2- or 4-cell conductivity probes, make it well-suited for universal laboratory applications. The 1000-item memory for conductivity measurements and calibration, along with standard RS232 and USB interfaces, ensures efficient data documentation and external device connectivity.


AQUASEARCHER™ AB23PH Bench Meter: Simplify pH and ORP measurements with the user-friendly AB23PH Bench Meter. Its intuitive design and auto buffer recognition make pH measuring a breeze. The large bright LCD provides complete measurement information, allowing you to monitor results from a distance. With its compact stand-alone electrode holder, the AB23PH offers flexibility in experiments and seamlessly integrates into any laboratory setup.


AQUASEARCHER™ AB23EC Bench Meter: Easily measure Conductivity, TDS, and salinity with the straightforward AB23EC Bench Meter. Its six instructional menu buttons and auto temperature compensation ensure accuracy and simplicity in measurement. The large backlit LCD provides complete measurement information, enabling easy operation and result monitoring. The compact stand-alone electrode holder enhances experiment flexibility, making it an ideal fit for any laboratory environment.


Starter 400M pH & Conductivity Portable: Use the durable and portable Starter 400M pH & Conductivity Meter for field testing. With its IP67 waterproof housing, rubber cover, and IP67 probes, this Meter can withstand prolonged use in any environmental condition. The rechargeable lithium battery provides 40 hours of uninterrupted operation, eliminating the hassle of frequent battery changes. The intuitive software and large LCD ensure an easy process, while electrode conditions and other critical information are displayed for successful tests.


Starter 400 pH Portable: Designed for field testing, the Starter 400 pH Portable Meter offers durability and reliability. IP67 waterproof housing, rubber cover, and IP67 probes make it suitable for various field environments. The rechargeable lithium battery provides 40 hours of continuous use, reducing downtime for battery replacements. With intuitive software and a large LCD, operating the Meter is a breeze. All essential information, including electrode condition, is displayed for seamless testing.


Starter 400D DO Portable: Experience high-performance dissolved oxygen (DO) measurements with the Starter 400D DO Portable Meter. This Meter utilizes optical technology to provide immediate measurement readings without needing warm-up or sample preparation. The large backlit LCD screen ensures easy tasks, even in low-light environments. With its durable IP54 housing, meter stand, wrist strap, and the ability to store calibration data for easy recall, this Meter is ideal for secure field use.


Starter 300 pH Portable: Wherever your work takes you, rely on the convenience of the Starter 300 pH Portable Meter. With auto buffer recognition and a simple calibration process, pH measurements are accurate and error-free. Automatic temperature compensation ensures precise results, and the durable IP54 housing, meter stand, and wrist strap make it suitable for field use. The Meter also includes a 30-measurement library for data storage and quick recall of calibration data.


Starter 300C Conductivity Portable: The Starter 300C Conductivity Portable Meter is your reliable companion for on-the-go conductivity measurements. Its four-pole linear electrode with a temperature sensor guarantees accurate readings by safeguarding against polarization and pollution effects. This Meter is user-friendly and efficient with its simple calibration process, automatic temperature compensation, and fast results. The 30-measurement library allows for easy data storage and quick calibration data retrieval.


Starter 300D DO Portable: Simplify dissolved oxygen (DO) measurements with the Starter 300D DO Portable Meter. Its galvanic electrode enables immediate use without the typical wait time associated with DO meters. With a user-friendly calibration process, automatic temperature compensation, and fast results, this Meter is designed for convenience and accuracy. The 30-measurement library ensures efficient data storage and easy recall of calibration data.


Starter Pen Meters: Enjoy fast and convenient electrochemistry measurement at your fingertips with our compact Starter Pen Meters. These small and economical meters offer straightforward operation. Our pen meters are designed with durable IP67 waterproof ABS housing, a protective sensor cap, and an automatic shutdown feature, which can withstand consistent use in rough and wet environments. With the included wrist strap, accidental drops, and damages are prevented.


Starter Electrodes: Power your measurements with Ohaus Precision Starter Electrodes, designed to meet your high standards. These sturdy and durable electrodes are constructed with plastic or glass shafts, ensuring long-lasting performance even with daily use. Each electrode includes a temperature sensor for automatic temperature compensation, guaranteeing accurate measurements. Whether you are using Ohaus bench meters or portable meters, our Starter Electrodes deliver reliable and precise results in various applications.


At Liberty Scales, we understand the importance of accurate measurements and reliable instruments for your laboratory and fieldwork. With our range of Ohaus Water Analysis Meters & Electrodes, you can trust that your research and analysis will reach new heights. Experience the power of precision with Liberty Scales and unlock limitless possibilities.

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Ohaus Starter PH Portable ST400-B, 2.00 – 16.00 pH

Ohaus
Original price $610.00 - Original price $610.00
Original price
$610.00
$610.00 - $610.00
Current price $610.00

Do you need help to achieve accurate and reliable pH measurements in field settings? Discover the solution with the Starter 400 pH Portable from L...

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Original price $610.00 - Original price $610.00
Original price
$610.00
$610.00 - $610.00
Current price $610.00

Ohaus Statrter Pen Meter ST20M-B, 0 – 1999 μs/cm;0.0 – 1000 mg/L, ± 0.05 ph

Ohaus
Original price $162.00 - Original price $162.00
Original price
$162.00
$162.00 - $162.00
Current price $162.00

Do you need help obtaining accurate and reliable water quality analysis measurements?  The Ohaus Starter Pen Meter ST20M-B offers a seamless solut...

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Original price $162.00 - Original price $162.00
Original price
$162.00
$162.00 - $162.00
Current price $162.00

Ohaus Starter Pen Meters ST10C-A, 0.00 – 199.9 μs/cm, ±2.5% FS

Ohaus
Original price $97.00 - Original price $97.00
Original price
$97.00
$97.00 - $97.00
Current price $97.00

Are you struggling with the need for quick, accurate water analysis in field conditions or laboratory settings? The Ohaus Starter Pen Meter ST10C-...

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Original price $97.00 - Original price $97.00
Original price
$97.00
$97.00 - $97.00
Current price $97.00

Ohaus Starter Pen Meters ST-10, 0.00 – 14 pH, ±0.1 pH

Ohaus
Original price $72.00 - Original price $72.00
Original price
$72.00
$72.00 - $72.00
Current price $72.00

Details specification Overview Starter pen meters provide what should be expected of a small, economical pen meter: simple, fast, straightf...

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Original price $72.00 - Original price $72.00
Original price
$72.00
$72.00 - $72.00
Current price $72.00

Ohaus Starter Pen Meter ST20T-B, 0.0 – 1000 mg/L, ± 1.5% / ± 0.5 °C

Ohaus
Original price $143.00 - Original price $143.00
Original price
$143.00
$143.00 - $143.00
Current price $143.00

Are you struggling with inconsistent results in your water quality measurements? The Ohaus Starter Pen Meter ST20T-B, brought by Liberty Scales, i...

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Original price $143.00 - Original price $143.00
Original price
$143.00
$143.00 - $143.00
Current price $143.00

Ohaus Starter Pen Meter ST20T-A, 0.0 – 100.0 mg/L, ± 1.5% / ± 0.5 °C

Ohaus
Original price $143.00 - Original price $143.00
Original price
$143.00
$143.00 - $143.00
Current price $143.00

Are you struggling with unreliable and complicated methods for testing water quality? The Ohaus Starter Pen Meter ST20T-A is here to streamline an...

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Original price $143.00 - Original price $143.00
Original price
$143.00
$143.00 - $143.00
Current price $143.00

Ohaus Starter Pen Meter ST20S, 0.0 – 80.0 ppt, ± 1.5% / ± 0.5 °C

Ohaus
Original price $143.00 - Original price $143.00
Original price
$143.00
$143.00 - $143.00
Current price $143.00

Are you struggling with inaccurate and unreliable water quality measurements? The Ohaus Starter Pen Meter ST20S is your solution, bringing the pr...

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Original price $143.00 - Original price $143.00
Original price
$143.00
$143.00 - $143.00
Current price $143.00

Ohaus Starter Pen Meter ST20R, -1000 – 1000 mV, ± 2 mV / ± 0.5 °C

Ohaus
Original price $213.00 - Original price $213.00
Original price
$213.00
$213.00 - $213.00
Current price $213.00

Are you facing challenges in obtaining precise and quick measurements for water quality and composition? The Ohaus Starter Pen Meter ST20R, brough...

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Original price $213.00 - Original price $213.00
Original price
$213.00
$213.00 - $213.00
Current price $213.00

Ohaus Starter Pen Meter ST20M-C, 0.0 – 99.0 °C;0.00 – 14 pH, ± 0.05 pH

Ohaus
Original price $162.00 - Original price $162.00
Original price
$162.00
$162.00 - $162.00
Current price $162.00

Are you struggling to achieve accurate and reliable pH, conductivity, and salinity measurements in your laboratory or field studies? The Ohaus Sta...

View full details
Original price $162.00 - Original price $162.00
Original price
$162.00
$162.00 - $162.00
Current price $162.00

Ohaus Starter Pen Meter ST20D, 0.0 – 19.9 mg/L, ±0.5 °C

Ohaus
Original price $494.00 - Original price $494.00
Original price
$494.00
$494.00 - $494.00
Current price $494.00

Are you struggling to obtain precise and reliable water analysis readings in your lab? The Ohaus Starter Pen Meter ST20D is here to solve your pro...

View full details
Original price $494.00 - Original price $494.00
Original price
$494.00
$494.00 - $494.00
Current price $494.00

Ohaus Starter Pen Meter ST20C-C, 0.00 – 19.99 ms/cm;0.0 – 99.0 °C, ± 1.5% / ± 0.5 °C

Ohaus
Original price $143.00 - Original price $143.00
Original price
$143.00
$143.00 - $143.00
Current price $143.00

Are you facing challenges in achieving precise and reliable water quality measurements in diverse settings? The Ohaus Starter Pen Meter ST20C-C, a...

View full details
Original price $143.00 - Original price $143.00
Original price
$143.00
$143.00 - $143.00
Current price $143.00

Ohaus Starter Pen Meter ST20C-B, 0 – 1999 μs/cm;0.0 – 99.0 °C, ±0.1 pH

Ohaus
Original price $143.00 - Original price $143.00
Original price
$143.00
$143.00 - $143.00
Current price $143.00

Are you struggling to achieve precise and reliable measurements in water quality analysis? The Ohaus Starter Pen Meter ST20C-B, brought by Libert...

View full details
Original price $143.00 - Original price $143.00
Original price
$143.00
$143.00 - $143.00
Current price $143.00

Ohaus Starter Pen Meter ST20C-A, 0.00 – 199.9 μs/cm;0.0 – 99.0 °C, ± 1.5% / ± 0.5 °C

Ohaus
Original price $143.00 - Original price $143.00
Original price
$143.00
$143.00 - $143.00
Current price $143.00

Are you struggling with inaccurate and complicated water analysis in your laboratory tasks?   Introduce accuracy and simplicity to your daily lab...

View full details
Original price $143.00 - Original price $143.00
Original price
$143.00
$143.00 - $143.00
Current price $143.00

Ohaus Starter Pen Meter ST20, 0.00 – 14 pH;0.0 – 99.0 °C, ± 0.05 pH / ± 0.5 °C

Ohaus
Original price $126.00 - Original price $126.00
Original price
$126.00
$126.00 - $126.00
Current price $126.00

Are you struggling with unreliable and cumbersome water testing equipment? Discover the simplicity and accuracy of the Ohaus Starter Pen Meter ST2...

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Original price $126.00 - Original price $126.00
Original price
$126.00
$126.00 - $126.00
Current price $126.00

Ohaus Starter Pen Meter ST10T-B, 0.0 – 1000 mg/L, ± 10mm

Ohaus
Original price $110.00 - Original price $110.00
Original price
$110.00
$110.00 - $110.00
Current price $110.00

Are you struggling with cumbersome and complex methods for water quality analysis? Simplify your laboratory or field measurements with the Ohaus S...

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Original price $110.00 - Original price $110.00
Original price
$110.00
$110.00 - $110.00
Current price $110.00

Ohaus Starter Pen Meter ST10T-A, 0.0 – 100.0 mg/L, ±2.5% FS

Ohaus
Original price $110.00 - Original price $110.00
Original price
$110.00
$110.00 - $110.00
Current price $110.00

Do you need help with unreliable water quality measurements in your laboratory or field studies? The Ohaus Starter Pen Meter ST10T-A, presented b...

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Original price $110.00 - Original price $110.00
Original price
$110.00
$110.00 - $110.00
Current price $110.00

Ohaus Starter Pen Meter ST10S, 0.0 – 10.0 ppt, ±2.5% FS

Ohaus
Original price $97.00 - Original price $97.00
Original price
$97.00
$97.00 - $97.00
Current price $97.00

Do you need help to ensure accurate water quality testing in various environments? The Ohaus Starter Pen Meter ST10S is your compact solution for ...

View full details
Original price $97.00 - Original price $97.00
Original price
$97.00
$97.00 - $97.00
Current price $97.00

Ohaus Starter Pen Meter ST10R, -1000 – 1000 mV, 2mV

Ohaus
Original price $159.00 - Original price $159.00
Original price
$159.00
$159.00 - $159.00
Current price $159.00

Are you facing challenges in obtaining accurate and consistent water quality measurements? The Ohaus Starter Pen Meter ST10R provides a dependable...

View full details
Original price $159.00 - Original price $159.00
Original price
$159.00
$159.00 - $159.00
Current price $159.00

Ohaus Starter Pen Meter ST10C-C, 0.00 – 19.99 ms/cm, ±2.5% FS

Ohaus
Original price $97.00 - Original price $97.00
Original price
$97.00
$97.00 - $97.00
Current price $97.00

Are you struggling with unreliable water quality measurements in your laboratory experiments? The Ohaus Starter Pen Meter ST10C-C offers a reliabl...

View full details
Original price $97.00 - Original price $97.00
Original price
$97.00
$97.00 - $97.00
Current price $97.00

Ohaus Starter Pen Meter ST10C-B, 0.00 – 199.9 μs/cm, ±2.5% FS

Ohaus
Original price $97.00 - Original price $97.00
Original price
$97.00
$97.00 - $97.00
Current price $97.00

Are you struggling with unreliable water quality measurements in your laboratory or field studies? The Ohaus Starter Pen Meter ST10C-B offers a c...

View full details
Original price $97.00 - Original price $97.00
Original price
$97.00
$97.00 - $97.00
Current price $97.00

Ohaus Starter DO Portable ST3100-B, -2.00 – 16.00 pH x 0.5%

Libertyscales
Original price $819.99 - Original price $819.99
Original price
$819.99
$819.99 - $819.99
Current price $819.99

Details specification Overview After more than a century of perfecting the art of measurement through our durable weighing products, OHAUS ...

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Original price $819.99 - Original price $819.99
Original price
$819.99
$819.99 - $819.99
Current price $819.99

Ohaus Starter pH & Conductivity ST3100M-F, -2.00 – 20.00 pH x 0.01pH

Libertyscales
Original price $1,216.99 - Original price $1,216.99
Original price
$1,216.99
$1,216.99 - $1,216.99
Current price $1,216.99

Details specification Overview Save time, space and money with the Starter 3100M Bench Meter, which combines all your pH, ORP, conductivity...

View full details
Original price $1,216.99 - Original price $1,216.99
Original price
$1,216.99
$1,216.99 - $1,216.99
Current price $1,216.99

Ohaus Starter DO Portable ST3100-F, -2.00 – 16.00 pH x 0.5%

Libertyscales
Original price $898.99 - Original price $898.99
Original price
$898.99
$898.99 - $898.99
Current price $898.99

Details specification Overview After more than a century of perfecting the art of measurement through our durable weighing products, OHAUS ...

View full details
Original price $898.99 - Original price $898.99
Original price
$898.99
$898.99 - $898.99
Current price $898.99

Ohaus Starter pH & Conductivity ST3100M-B, -2.00 – 20.00 pH x ±0.01pH

Libertyscales
Original price $1,072.99 - Original price $1,072.99
Original price
$1,072.99
$1,072.99 - $1,072.99
Current price $1,072.99

Details specification Overview Save time, space and money with the Starter 3100M Bench Meter, which combines all your pH, ORP, conductivity...

View full details
Original price $1,072.99 - Original price $1,072.99
Original price
$1,072.99
$1,072.99 - $1,072.99
Current price $1,072.99