Key features 1.4 -digit LCD display 2. With RS232 interface, data can be stored and uploaded to the computer, and then saved and printed. 3. Clamp CT, non-contact measurement. 4. AC and DC leakage current, current measurement, polarity indication 5. The zero adjustment function makes the measurement more accurate. 6.99 sets of data storage 7. Data storage 8. Security level CATI1600V