Feature: 1. Adopt intelligent control and LCD display 2. The battery internal resistance tester can measure the internal resistance and voltage of the battery at the same time. 3. Used to measure the AC resistance of capacitors and low-resistance high-precision resistors 4. High precision, high efficiency, low cost, light weight, energy saving and environmental protection 5. Widely used in various battery production, maintenance, testing, scientific research laboratories and other occasions Product parameters: Measurement parameters: AC resistance, D.C voltage Basic accuracy: resistance 0.5%, voltage 0.5% Language: Switch between Chinese and English at will Display results: LCD display, read only Battery: Built-in 1000mAh lithium battery (shipped with built-in battery) Packaging and list: RC3563 high-precision battery voltage and internal resistance tester*1