The first and most important step is to determine which safety standards your products must comply with:

• Choose AC hipot if: Testing most general electrical products, Standard safety certification testing, Compliance with IEC/UL household appliance standards
• Choose DC hipot if: Testing cables with high capacitance, Semiconductor and electronics components, Cable and wire testing
• Choose Combined AC/DC if: Full-spectrum testing requirements, Multiple product lines, Future-proofing investment

• For Production Line Use: High speed (fast testing cycles), Auto PASS/FAIL with buzzer/light alarm, Data output for quality tracking, Compact size for production floor
• For Laboratory Use: High precision and accuracy, Adjustable ramp rate, Arc detection and analysis, Data logging and PC connectivity
• For Field/On-Site Use: Portable, handheld design, Battery operation (optional), Rugged construction, Simple operation

• Must-Have: Adjustable test voltage, Adjustable test duration (1-60s), FAIL alarm (audible/visual), Remote control for automated testing
• Important: Arc detection, Linear voltage ramp, Ground continuity check, Store/recall settings
• Advanced: Data logging, PC software for reports, Barcode scanner compatibility, Network connectivity

• Calibration Certificate — Essential for ISO/IEC 17025 labs
• CNAS Calibration — Chinese lab accreditation, internationally recognized
• Technical Support — Choose a manufacturer with responsive after-sales support
• Warranty — Minimum 1 year, preferably 2 years