These waterproof testers come with adjustable TDS factor, allowing users to measure TDS in a wide range of applications. EcoTestr TDS High measures from 0 to 10 ppt, EcoTestr TDS Low measures from 0 to 1990 ppm.

• Adjustable TDS factor from 0,4 (Low) or 0,5 (High) to 1,0
• Hold function freezes reading temporarily for ease of recording
• IP67 waterproof – tester floats on water for easy retrieval
• Long sensor life – no need to change sensors
• Transparent protective cap that doubles up as a container for samples or calibration solution
• Large, upright LCD with parameter display and battery level indicator for easy reading
• Manual calibration option for better accuracy with near-to-sample calibrations

Ideal for use in a wide range of conductivity applications, such as hydroponics gardening, fish-farming, pools, electroplating and other water/wastewater applications.