1. Intelligent, micro-processor control, 2. Charge testing auto conversion 3. Auto charge and discharge Features:1. Intelligent, micro-processor control, charge testing auto conversion.2. Minimum resolution of current up to 1nA, zeroing by button pressing.3. Locking function of test current value, strong anti-interference ability. Specifications:1. Test Voltage: 1.00V to 800V 3 ranges adjustable, ...