<p>Model Number: ez-9909</p> <p>Display Type: Digital</p> <p>With Backlight Or Not: YES</p> <p>Multi-functional water quality tester</p> <p>Conductivity measurement range: 0 to10000uS\/cm 10.01-19.99ms 20.1-400ms\/cm. accuracy: \u00B12% of the reading</p> <p>TDS measurement range: 0 to 1000ppm 1000ppm to 10000ppm 10.1 to 200.0 PPT</p> <p>Salinity measurement range: 0.00 to 25.00% resolution: 0.01%</p> <p>PH measurement range: 0.01-14.00pH, resolution: 0.01pH, accuracy: \u00B10.05pH</p> <p>Colour:As shown</p> <p>Material:plastic</p> <p>Package Contents:</p> <p>1 x 5 in 1 Water quality tester(with backlight)</p> <p>1 x English manual</p> <p>Only the above package content, other products are not included.</p> <p>Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +\/- 1-3cm.</p>