Digital TDS/EC Meter Tester Pen for Aquarium, Pool and Hydroponics

Conductivity: 0 - 9999µs/cm  TDS: 0 - 9999ppm  Degrees Celsius: 0.1 - 80.0°C  Fahrenheit: 32.0 - 176.0°F Resolution: TDS: 1ppm; EC: 1µs/cm Battery: 1*3.0V (CR2032) ( included) Accuracy: ± 2% Size: 6 x 1.2 x 0.6 inches (154 x 30 x 14 mm) Feature: - 100% new with high quality -100% new products with high quality and high price. - Three-in-one smart pen combines TDS, EC and thermometer to improve accuracy. - Lock function, easy to read and record, press the "Hold" button and then remove it from the test solution. - Freshwater aquarium, pond and water purification system for checking TDS / salt (NaCl) content. - With automatic temperature compensation, the measuring range is 0-9999 ppm / - 2%. - After 5 minutes of inactivity, the instrument will automatically turn off. - 4 display mode: Press the SHIFT button: TDS-ppm and °C, EC-us / cm and °C, TDS-ppm and °F, EC-us / cm and °F.