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Total Dissolved Solids Meters (TDS)

TDS meters, or Total Dissolved Solids meters, play a vital role in modern water quality monitoring across a wide range of applications. At Hanna Instruments, we offer a carefully curated selection of reliable and accurate TDS meters designed to meet the needs of professionals in both industrial and environmental settings. Our instruments are developed using advanced measurement technologies to ensure precise readings that support informed decision-making when it comes to water treatment and safety.

TDS meters are essential for understanding the composition of water and ensuring its suitability for use in various industries. Whether used in pharmaceuticals, food and beverage production, agriculture, or water purification systems, these meters provide instant data on the concentration of dissolved solids, including minerals, salts, and other potential contaminants. With this information, users can take timely actions to maintain water purity, comply with regulations, and optimise processes that rely on clean water.

Why TDS meters matter for water quality

Monitoring total dissolved solids is critical for identifying water purity and detecting substances that may compromise safety or performance. In sectors like pharmaceutical manufacturing and chemical processing, even trace levels of impurities can disrupt production and impact the final product. In drinking water systems, high TDS levels can influence taste and signal the presence of harmful compounds. That’s why TDS meters have become an indispensable part of quality assurance and regulatory compliance in water-related industries.

At Hanna Instruments, we understand that each application demands a specific level of precision and durability. Our TDS meters come in both portable and benchtop models, making them ideal for both fieldwork and laboratory use. Each meter is designed to be user-friendly and built with rugged components to withstand demanding environments, all while providing rapid and repeatable results.

How TDS meters work

TDS meters operate using electrical conductivity (EC) as the core measurement method. The meter’s electrodes assess the ability of water to conduct an electric current, which is directly influenced by the presence of dissolved ions. These readings are then converted into TDS values, typically shown in ppm (parts per million) or mg/L (milligrams per litre), depending on the selected calibration factor. This process allows for fast and non-destructive testing of water samples in a wide variety of contexts.

Find the right TDS meter for your needs

If you're unsure which of our TDS meters best suits your specific application, our expert team at Hanna Instruments is here to help. We provide personalised guidance to ensure that you find the most appropriate device based on your requirements. Whether you're testing for compliance, process control, or environmental monitoring, you can count on our instruments to deliver precision and performance.

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27 products

HI-2600 pH EC and DO Benchtop meter

HI-2600 pH EC and DO Benchtop meter

Regular price 6,737.00 kr
Sale price 6,737.00 kr Regular price
HI-99301 EC/TDS/Temperature Meter - High Range

HI-99301 EC/TDS/Temperature Meter - High Range

Regular price 5,011.00 kr
Sale price 5,011.00 kr Regular price
HI-99300 EC/TDS/Temperature Meter - low range

HI-99300 EC/TDS/Temperature Meter - low range

Regular price 5,011.00 kr
Sale price 5,011.00 kr Regular price
HI-98494 Multiparameter Bluetooth pH EC OPDO Meter

HI-98494 Multiparameter Bluetooth pH EC OPDO Meter

Regular price 38,490.00 kr
Sale price 38,490.00 kr Regular price
HI-9811-51 pH/EC/TDS Meter  with HI-1285-51

HI-9811-51 pH/EC/TDS Meter with HI-1285-51

Regular price 3,169.00 kr
Sale price 3,169.00 kr Regular price
HI-9812-51 pH /EC/TDS/ Temperature Portable Meter

HI-9812-51 pH /EC/TDS/ Temperature Portable Meter

Regular price 3,160.00 kr
Sale price 3,160.00 kr Regular price
HI-9813-61 pH/EC/TDS and Temperature Portable Meter with CAL Check

HI-9813-61 pH/EC/TDS and Temperature Portable Meter with CAL Check

Regular price 2,651.00 kr
Sale price 2,651.00 kr Regular price
HI-9813-51 pH/EC/TDS and temperature Portable Meter

HI-9813-51 pH/EC/TDS and temperature Portable Meter

Regular price 3,332.00 kr
Sale price 3,332.00 kr Regular price
HI-983024 Pool Line TDS Tester with amperometric graphite electrode

HI-983024 Pool Line TDS Tester with amperometric graphite electrode

Regular price 870.00 kr
Sale price 870.00 kr Regular price
HI-981304 pH/EC/TDS Combo Tester

HI-981304 pH/EC/TDS Combo Tester

Regular price 2,323.00 kr
Sale price 2,323.00 kr Regular price
BL-983315-1 TDS Mini Controller 0.00 to 199.9 mg/L

BL-983315-1 TDS Mini Controller 0.00 to 199.9 mg/L

Regular price 0.00 kr
Sale price 0.00 kr Regular price
HI-98197 Professional Waterproof Meter for Ultrapure Water

HI-98197 Professional Waterproof Meter for Ultrapure Water

Regular price 21,259.00 kr
Sale price 21,259.00 kr Regular price
HI-98318 GroLine Waterproof EC/TDS (ppm) Tester

HI-98318 GroLine Waterproof EC/TDS (ppm) Tester

Regular price 1,073.00 kr
Sale price 1,073.00 kr Regular price
HI-98131 GroLine Hydroponic Waterproof Pocket pH/EC/TDS/Temperature Tester

HI-98131 GroLine Hydroponic Waterproof Pocket pH/EC/TDS/Temperature Tester

Regular price 2,738.00 kr
Sale price 2,738.00 kr Regular price
HI-9814 Groline Hydroponic Portable pH/EC/TDS/Temperature Meter

HI-9814 Groline Hydroponic Portable pH/EC/TDS/Temperature Meter

Regular price 3,222.00 kr
Sale price 3,222.00 kr Regular price
HI-98194 Multiparameter pH/ORP/EC/DO Waterproof Meter

HI-98194 Multiparameter pH/ORP/EC/DO Waterproof Meter

Regular price 25,992.00 kr
Sale price 25,992.00 kr Regular price
HI-98195 Multi-parameter pH /ORP/ EC Waterproof Meter

HI-98195 Multi-parameter pH /ORP/ EC Waterproof Meter

Regular price 15,729.00 kr
Sale price 15,729.00 kr Regular price
HI-98192 Professional Waterproof EC/TDS/Resistivity/Salinity Meter

HI-98192 Professional Waterproof EC/TDS/Resistivity/Salinity Meter

Regular price 10,642.00 kr
Sale price 10,642.00 kr Regular price
HI-991301 High Range pH ,EC,TDS & Temperature Meter

HI-991301 High Range pH ,EC,TDS & Temperature Meter

Regular price 8,357.00 kr
Sale price 8,357.00 kr Regular price
HI-991300 Waterproof pH, EC, TDS and Temperature Meter with Advanced Features

HI-991300 Waterproof pH, EC, TDS and Temperature Meter with Advanced Features

Regular price 8,357.00 kr
Sale price 8,357.00 kr Regular price
HI-98311 EC, TDS  and Temperature Tester, Low Range

HI-98311 EC, TDS and Temperature Tester, Low Range

Regular price 1,679.00 kr
Sale price 1,679.00 kr Regular price
HI-98302 Pocket TDS Tester (0.00 to 10.00ppt)

HI-98302 Pocket TDS Tester (0.00 to 10.00ppt)

Regular price 870.00 kr
Sale price 870.00 kr Regular price
HI-98301 Pocket TDS Tester (0 to 2000mg/L)

HI-98301 Pocket TDS Tester (0 to 2000mg/L)

Regular price 870.00 kr
Sale price 870.00 kr Regular price
HI-98130 Pocket EC/TDS and pH Tester, High Range

HI-98130 Pocket EC/TDS and pH Tester, High Range

Regular price 2,323.00 kr
Sale price 2,323.00 kr Regular price
HI-98129 Pocket EC/TDS and pH Tester, Low Range

HI-98129 Pocket EC/TDS and pH Tester, Low Range

Regular price 2,323.00 kr
Sale price 2,323.00 kr Regular price
HI-2030 edge  Hybrid Multiparameter EC Meter

HI-2030 edge Hybrid Multiparameter EC Meter

Regular price 10,706.00 kr
Sale price 10,706.00 kr Regular price
HI-98312 EC, TDS  and Temperature Tester, High Range

HI-98312 EC, TDS and Temperature Tester, High Range

Regular price 1,679.00 kr
Sale price 1,679.00 kr Regular price

About Hanna Instruments

As a world-leading developer in pH and titration science, we help professionals and amateurs with their daily testing needs across a wide range of applications. We provide easy-to-use, well-adapted instruments at great prices and fast support.

Our philosophy of being as close to our customers as possible has resulted in dedicated sales and technical support offices in over 40 countries. Our desire to be an innovator has created many world firsts in test instrumentation, and we continue to innovate and bring new solutions to the market as a direct response to our customers' needs. You will find Hanna instruments used in almost every conceivable application. From happy amateurs looking after their home aquarium, to food artisans and all the way to national and international brands in all industrial sectors, Hanna is a trusted name with over 3,000 products, all manufactured in our ISO9001 certified European manufacturing facility.