This is a blue, 0.7 inch digital LCD TDS meter water quality/purity testerSold By universbuy
Specifications: 1ppm (0-000ppm) 10ppm (1000-9990ppm) Factory calibrated Auto shut-off: 10 minutes Temperature compensation: Automatic Operating temperature: 0°C to 50°C Power supply: 2 x 1.5V batt...Read More…
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