["brand new and high quality\nFeatures:\nYY-400 /YY-400N is a newly developed high-precision multifunctional water quality tester, which has the functions of measuring the PH, ORP, hydrogen ion concentration, and temperature of the water. The automatic temperature compensation (0-60℃) measurement data is updated. Accurate, easy to operate, easy to carry, drinking plenty of water rich in hydrogen ions is good for health.\n\n1.PH\n Range: 0.01-14.00pH\n Resolution: 0.01pH\n Accuracy: ±0.05pH\n\n2.ORP\n Range: ±999mV\n Resolution: 1mV\n Accuracy: ±2mV\n\n3.H2\n Range: 0-2400ppb; 0.001-2.400\n Resolution: 2ppb; 2ppm\n Accuracy: ±10ppb; ±10ppm\n\n4. Temperature\n Range: 0.1-60.0°C 32.0-140°F\n Resolution: 1℃/°F\n Accuracy: ±0.5\n\n1. Display: LCD digital display\n2. Backlight: optional backlight（YY-400: Backlight，YY-400N: No backlight）\n3. Temperature: automatic temperature compensation 0-60℃\n4. Working environment: 0-60℃ (32.0-140°F); RH \n5. Waterproof: Ip67\n6. Automatic shutdown: 5 minutes\n7. Data retention: value retention\n8. Battery: 3*1.5V (LR44) (not including battery)\n9. Screen size: 33 * 24mm\n10. Size: 183\"37*37mm(7.2*1.5*1.5in)\n11. Weight: 90g\n\nNote: \nPlease allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid.\nDue to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you!\n\nPackage includes:\n1xDydrogen Ion Concentration Tester"]