High-Precision Battery Voltage Internal Resistance Tester 1. Speed: 5 timessecond 2. Resistance: 1μΩ~200Ω 3. Voltage: 1mV 100V DC 4. Test signal frequency: AC 1KH 5. Test signal current: 20mΩ, 50mA; 200mΩ, 5mA; 20Ω, 0.5 mA 6. Resistance range: 6 ranges automatic and manual 7. Voltage range: 3 ranges automatic and manual 8. Display update: 5 timessecond 9. Language: Chinese and English can be switched at will 10. Multi-purpose, in addition to measuring battery internal resistance and voltage, this battery tester can also accurately measure the AC resistance and low resistance value of capacitors 11. Built-in 1000mAh lithium battery to provide lasting power for your battery internal resistance detector 12. Widely used in various battery production, maintenance, testing, scientific research laboratory scenarios, ensuring its versatility and reliability 13. Adopting intelligent control, LCD display, and implanting Kalman filter mathematical algorithm, the battery internal resistance meter has high accuracy, high efficiency, light design, and energy saving. 14. Accurate measurement, using four-wire test clip, effectively avoiding the influence of contact resistance and wire resistance, and can perform more measurements on battery internal resistance and voltage. 15. Size: 80x171 mm