Feature: 1. 4 Test Frequency: The VI curve tester has 4 test frequencies, which can be connected to oscilloscopes, analog oscilloscopes and digital oscilloscopes for use 2. Dual Signal Input: The curve tester can input dual signals and alternate display, which is more convenient to observe 3. 4 Gear Speed: The curve tester has 4 gear frequency speed, the alternating speed can be adjusted according to different situation 4. Simple Operation: One key to open single channel or alternate display function, this curve tester is easy to use 5. Application: The ASA tester is used for circuit board inspection and maintenance, component screening, which is an important testing equipment Specification: Item Type: VI Curve Tester Material: ABS Channel: 2 Frequency: 4 gears. Package List: 1 x VI Curve Tester2 x BNC Cable2 x Test Cable Note: 1. When testing the circuit board online, do not charge the circuit board.2. If there is a large capacitor on the circuit board, it must be discharged first, otherwise the test board will be easily burned.