Multifunctional Digital 10 in 1 Water Quality Tester Portable High Accurancy Water Quality Test Pen Water Quality Measurement Tool Water PH/Total Dissolved Solids/EC/Salinity/ORP/H2/S.G/Temperature/Nutrient Solution Concentration/㏁ Measuring Light weight and portable, accurate water measurement, take care of the whole family's drinking water safety. Features: One button to switch function. Whole machine waterproof. Battary can be replaced easily. Portable design for easy carrying and storage. Quick and accurate test. Large and clear screen to view the value. Real-time display the remaining battery power. Specifications: Type: with backlight, without backlight (optional) Main color: white Main material: plastics PH measuring range: 0-14 Total Dissolved Solids measuring range: 0-200000ppm EC measuring range: 0-200000㎲/cm Salinity measuring range: 0-20% ORP measuring range: ±1999MV H2 measuring range: 0-2400PPb S.G measuring range: 1.000-1.222 Temperature measuring range: 0-60℃ Nutrient solution concentration measuring range: 0-3 ㏁ measuring range: 50Ω-20㏁ Battery: 3 * 1.5V button battery (not included) Item size: 185 * 37mm / 7.3 * 1.5in Package size: 210 * 80 * 50mm / 8.3 * 3.1 * 2.0in Package weight: 160g / 5.6ounce Packing List: 1 * Water Quality Tester