... TFT display, charge testing auto conversion. This series tester can display test voltage, current, resistance, and time simultaneously. 2. Minimum test current ... is 0.1nA, the maximum insulation resistance is up to 10.00Tohm.3. Locking function of test ... A, accuracy 1%3. Max. Charging current: 500mA ±10%4. Resistance Range: 100.0kohm to 100.0Gohm5. Charging time: 0.3s ...