Digital TDS Meter 3 in 1 Water Quality Tester Pen for Drinking Water

This Digital 3 in 1 TDS Meter Water Quality Tester Pen helps you instantly measure TDS EC and Temperature of water with a clear LCD display. It is ideal for testing drinking water RO systems aquariums pools hydroponics labs bore water and everyday household water. With fast readings and simple one-button operation this portable water tester is easy to use anywhere. Just dip the probe in water and the meter shows results within seconds making it a reliable tool for water checking at home school or office.✨ Features and Use Cases💧 Check Drinking Water Purity – Monitor TDS level of home tap or filtered water🏠 RO System Maintenance – Helps track filter performance🐠 Aquariums – Ensure safe water conditions for fish🏊 Swimming Pools – Quick TDS and temp check🌱 Hydroponics Use – Monitor nutrient solution levels🔬 Laboratory & Educational Use – Perfect for students and testing projects🔋 Auto Off Feature – Saves battery automatically💼 Pocket Friendly Portable Design – Carry and test anywhere.