Top rated conductivity meters and accessories

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AI-generated summary · updated July 28, 2026 · verify details before purchase.

1. 

   1 Best overall Hanna Instruments

   Hanna Instruments HI9835

   ★★★★☆4.5/5 $284.13 Only 1 left

   Hanna Instruments HI9835 is a highly accurate and reliable conductivity meter, suitable for a variety of applications. It features a rugged design and an easy-to-use interface.

   • High accuracy
   • Rugged design
   • Easy to use

   • Expensive

   View on Amazon manufacturer site
2. 2 Best for research

   Thermo Scientific Orion Star A212

   ★★★★☆4.3/5 $200-$300

   Thermo Scientific Orion Star A212 is a high-end conductivity meter, offering advanced features and precise measurements. It is ideal for research and laboratory applications.

   • High precision
   • Advanced features
   • Durable construction

   • Complex interface

   View on Amazon manufacturer site
3. 

   3 Best budget pick Oakton

   Oakton PC300

   ★★★★☆4.2/5 $865.00 Only 3 left

   Oakton PC300 is a compact and affordable conductivity meter, offering reliable performance and an easy-to-use design. It is a great option for general-purpose applications.

   • Affordable
   • Portable design
   • Easy to use

   • Limited features

   View on Amazon manufacturer site
4. 

   4 Best for field use Extech

   Extech EC400

   ★★★★☆4.1/5 $124.00 Only 5 left

   Extech EC400 is a rugged and waterproof conductivity meter, designed for field use and harsh environments. It features a simple and intuitive interface.

   • Waterproof design
   • Rugged construction
   • Easy to read display

   View on Amazon manufacturer site
5. 

   5 Best for industrial use Antrader

   Yellow Springs YSI 556

   ★★★★☆4.4/5 $15.99 Only 11 left

   Yellow Springs YSI 556 is a high-quality conductivity meter, designed for industrial and process control applications. It features advanced calibration options and a durable design.

   • Advanced calibration
   • Durable construction
   • High accuracy

   View on Amazon manufacturer site
6. 

   6 Best for basic use Milwaukee

   Milwaukee MC122

   ★★★★☆4.0/5 $200.55

   Milwaukee MC122 is a basic and affordable conductivity meter, suitable for simple applications and educational purposes. It features a simple and easy-to-use design.

   • Affordable
   • Easy to use
   • Compact design

   • Limited accuracy

   View on Amazon manufacturer site
7. 7 Best for laboratory use

   Eutech PC7000

   ★★★★☆4.3/5 $100-$200

   Eutech PC7000 is a high-precision conductivity meter, designed for laboratory and research applications. It features advanced calibration options and a durable design.

   • High precision
   • Advanced calibration
   • Durable construction

   View on Amazon manufacturer site
8. 

   8 Best for water testing HORIBA

   Horiba LAQUAtwin EC-11

   ★★★★☆4.5/5 $99.98

   Horiba LAQUAtwin EC-11 is a compact and accurate conductivity meter, designed for water testing and environmental applications. It features a simple and intuitive interface.

   • High accuracy
   • Portable design
   • Easy to use

   View on Amazon manufacturer site
9. 

   9 Best for wastewater testing HACH

   Hach HQ40D

   ★★★★☆4.4/5 $2,897.00

   Hach HQ40D is a high-quality conductivity meter, designed for wastewater testing and industrial applications. It features advanced calibration options and a durable design.

   • Advanced calibration
   • Durable construction
   • High accuracy

   View on Amazon manufacturer site

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