A. Model Number: ez-9909 B. Display Type: Digital; With Backlight: YES C. Multi-functional water quality tester specifications: - Conductivity measurement range: 0 to 10000 μS/cm, 10.01-19.99 ms/cm, 20.1-400 ms/cm; accuracy: 2% of the reading - TDS measurement range: 0 to 1000 ppm, 1000 ppm to 10000 ppm, 10.1 to 200.0 PPT - Salinity measurement range: 0.00 to 25.00%; resolution: 0.01% - pH measurement range: 0.01-14.00 pH; resolution: 0.01 pH; accuracy: 0.05 pH D. Colour: As shown; Material: plastic E. Package Contents: 1 x 5-in-1 Water quality tester (with backlight), 1 x English manual. Only the above package content is included; other products are not included. F. Note: Light shooting and different displays may cause the color of the item in the picture to differ slightly from the real thing. The measurement allowed error is +/- 1-3 cm.