TDS pen, water quality tester, digital salinity tester with LED screen, portable seawater quality tester, salt water meter for drinking water, swimming pools and aquariums

General Description The TDS pen is a digital water quality tester designed to measure the salinity and purity of water. It is ideal for ensuring you are drinking clean and safe water, thus protecting your health. This portable tester is lightweight and easy to carry, making it convenient for use at home or on the go. Technical Specifications Measuring Range: 0-9990 mg/l (PPM) Resolution: 1 PPM Accuracy: ± 2% (FS) Operating Temperature: 0~50℃ Relative Ambient Temperature: <85% Power Supply: Battery (battery included) Automatic Temperature Compensation: Automatic conversion at 25℃ Operation The tester is easy to use and can acquire test data in just 5 seconds. It is suitable for a wide range of applications, including: Water purifiers and filters, Food quality monitoring (vegetables, fruits), Water quality control in swimming pools and spas, Use in aquariums, Hydroponic farming