- Efficient electrical measurements: NCV sensor technology and stable inductive sensitivity deliver accurate contactless voltage testing across a wide AC range of 12-1000V, enhancing safety and versatility. - Advanced guidance for users: Visual and audible cues accompany an LCD percentage readout, correlating frequency-voltage patterns with color-coded risk levels for immediate and reliable safety feedback. - Precision adjustment: Sensitivity can be tuned with auto-voltage recognition to ensure compatibility with low-voltage systems, paired with an intuitive strength display. - Injury prevention system: Over-voltage alert and double-insulated construction protect users, reducing risk and providing a secure testing experience. Practical use scenarios: - Home or workshop checks: quickly verify presence of voltage on wall outlets, extension cords, and power strips without direct contact. - Electrical installations and service work: safely confirm live circuits in panels or junction boxes before maintenance, using auto-voltage recognition and over-voltage alerts. - Industrial maintenance: inspect machinery wiring and cables up to 1000V AC in facilities, with clear color-coded safety feedback to support safe operation.