Multifunction Water Tester Pen (TDS, EC, pH, Salinity, Temp)

• Measures Total Dissolved Solids (TDS), Electrical Conductivity (EC), pH, Salinity, and Temperature. • Digital display for easy reading of water quality parameters. • Suitable for testing drinking water, aquariums, hydroponics, and pools. • Compact and portable design for on-the-go testing. • Brand new condition, ensuring accurate and reliable measurements. • Powered by standard batteries (not included).