Feature: 1. VERSATILE TESTING FREQUENCIES: With four adjustable testing frequencies, the VI curve tester allows for flexibility in testing different circuit boards, providing more comprehensive and accurate results. 2. INTUITIVE DISPLAY: Equipped with a user friendly screen, the tester provides a clear and visual display of the test data, making it easy to observe and analyze results in real time. 3. CONVENIENT AND SAFE TESTING: Unlike traditional circuit testing methods, the VI curve tester does not require the circuit to be powered on. This not only ensures the safety of the circuit board but also allows for separate testing of detached circuit boards, making it an efficient tool for fault detection. 4. BROAD COMPATIBILITY: Regardless of the composition or functionality of the circuit components, whether they are digital, analog, or a combination of both, known or unknown, dedicated or programmable, the VI curve tester can effectively test them by focusing on testing the circuit nodes (device pins), bypassing limitations imposed by component packaging. 5. EXTENSIVE APPLICATIONS: The VI curve testing technology is not only suitable for testing simple circuit boards but also enables the detection of complex or unknown integrated circuits. In fact, due to its limited conditions, the VI curve tester is often the only viable option for many users to test such devices. Additionally, it offers a convenient and intuitive method for testing the functionality of discrete components. Specification: Item Type: VI Curve Tester Material: ABS Display: 1.3 inch Organic Light Emitting Diode Battery: Rechargeable lithium battery 3000mAh x 1 [Shipped with built in battery] 4 Internal Resistance Adjustable: 56R, 470R, 1.5K, 20K 4 Test Frequencies: 50Hz, 300Hz, 2kHz, 13kHz Curve Motion: Support Scanning Function: Supported True Dual Channel: Support Synchronous Display: Supported Program Control: Support. Package List: 1 x Tester 2 x BNC Cable 2 x Test Cable 1 x USB Cable