Product Description: The Portable Conductivity Meter DDB-11A is a highly accurate and reliable instrument designed for measuring the conductivity of various liquids. With its microcomputer control, this device offers high precision and stability, making it an essential tool for industries such as light industry, chemical processing, food production, pharmaceuticals, environmental protection, and scientific research. Key Features: Wide Measuring Range: Capable of measuring conductivity across multiple ranges: 0 to 199.9 s/cm 200 to 1999 s/cm 2.00 to 19.99 ms/cm 20.0 to 199.9 ms/cm High Precision: Ensures accurate readings with a resolution of 0.1/1 s/cm and 0.01/0.1 ms/cm. Temperature Compensation: Manual temperature compensation range from 10 to 50, ensuring accurate measurements under varying conditions. User-Friendly Operation: Simple to use, with easy maintenance, making it ideal for both professional and educational settings. Durable Design: Comes with a platinum black DJS-1 electrode and a 1408 s/cm conductivity standard for calibration, ensuring long-lasting performance. Specifications: Model: DDB-11A Measuring Range: 0~199.9 s/cm 200~1999 s/cm 2.00~19.99 ms/cm 20.0~199.9 ms/cm Resolution: 0.1/1 s/cm; 0.01/0.1 ms/cm Accuracy: 1.0% FS (Full Scale), with matching 1.5% FS Temperature Compensation Range: 10~50 (Manual) Temperature Coefficient: 2.0%/ Package Includes: 1 x DDB-11A Portable Conductivity Meter 1 x DJS-1 (Platinum Black) Electrode 1 x 1408 s/cm Conductivity Standard Calibration Solution Applications: Ideal for testing the conductivity of water in various industries including light industry, chemical, food, medicine, health, energy, environmental protection, and education. Note: Ensure correct calibration and maintenance for optimal performance.