Features

• Instant and accurate TDS tests
• Electronic Internal Standard for easy field calibration
• Fast Auto Temperature Compensation
• Rugged design for years of trouble-free testing
• Simple to use

The choice of professionals for years, this compact instrument has been designed specifically to demonstrate and test Point of Use (POU) reverse osmosis or distillation systems. By measuring electrical conductivity, it will quickly determine the parts per million/Total Dissolved Solids (ppm/TDS) of any drinking water.

With a single "before and after" test, this handy device effectively demonstrates how your RO or distillation system eliminates harmful dissolved solids. It will also service test systems, including membrane evaluation programs.

IF YOU ALSO TEST pH

Myron L^® offers instruments that check both TDS and pH, and are widely used throughout the RO industry.

• pH sensor is built-in for maximum protection
• Automatic temperature compensation
• Full calibration capability
• Many models available

HOW CONDUCTIVITY MEASURES ppm/TDS

Total Dissolved Solids (TDS) conduct electricity. This conductivity allows measurement of the concentration of these salts directly in parts per million (ppm). However, the salts' composition in waters can vary significantly by location. Since various salts pass current differently, it was necessary to determine an "average" ppm/ conductivity relationship. The Myron L^® Company established the "442" Standard over 40 years ago. It remains the world's most widely accepted standard of its kind.