1. Dual Channel VI Curve Tester: Experience precision with our dual channel VI curve tester, featuring adjustable 18-stage frequency and 9-stage internal resistance. It supports A or A+B channel display and offers a 5V trigger output for versatile testing needs. 2. Handheld Portable VI Curve Tester : This handheld portable VI curve tester is perfect for on-the-go circuit board analysis. It includes a built-in 3000mAh lithium battery and charges via a convenient TYPE-C interface for extended use. 3. Circuit Board On-Line Tester: Optimize your testing with our circuit board on-line tester, equipped with a 2.0-inch TFT color screen for clear display. The B channel position is adjustable, enhancing the flexibility and accuracy of your diagnostics. 4. Circuit Board VI Curve Tester: Ensure efficient circuit testing with our circuit board VI curve tester, which automatically powers off after 15 minutes of inactivity to save energy. It supports dual-channel signal input for comprehensive board analysis. 5. VI Curve Tester for Circuit Boards: This VI curve tester for circuit boards supports adjustable channel settings and features a 5V trigger signal output. Its compact design and high-capacity battery make it ideal for both fieldwork and lab use. Dual Channel VI Curve Tester 18 Gear Frequency Adjustable Handheld Portable VI Curve Tester Dual-channel VI Curve Tester with 2.0inch Screen 3000mAh Circuit Board Online Detection Tester ASA Tester High safety: ASA testing does not require the circuit board to be powered on; ASA testing does not involve circuit principles and does not require the circuit to be in working condition Strong adaptability: ASA testing does not involve the functions of components on the circuit board, so no matter what type of components the circuit is composed of, including digital, analog, mixed digital and analog, etc