O Allah, bestow upon us Your contentment, Your well-being, and everlasting joy, O Lord. .O lovers of the Prophet, send blessings upon him 🕊❤ .  Device Features Measures the dissolved salts in water (TDS). Measures water temperature (°C / °F). Measurement range from 0 to 9999 PPM. Clear digital screen. HOLD button to freeze reading. High measurement accuracy. Easy to use. Comes with a carrying case. Device Uses Measuring drinking water. Measuring filter water. Measuring desalination plant water. Measuring aquarium water. Measuring hatchery water. Measuring irrigation system water.