Features: Not contact voltage detection, supporting a ranges of AC12V-1000V, to avoid the risk of electric shock caused by direct contact for users. Suitable for home and office safety inspections to ensure safe electricity usage. The measurement accuracy reaches ± 5%+3, and the display of voltage condition help users quickly identify circuit problems. Specially suitable for electricians and maintenance personnel, improving work efficiency and reducing troubleshooting time. The double prompt design of the buzzers screen allows users to detect changes in condition during detection, making it more suitable for a wide ranges of environment. It can still be clear and loud in noise environment, making it convenient for home users and professional electricians to use. The device can automatically shut down after 5 minutes of inactivity, extending battery lifespans and maintaining a standbys state at any time. Solved the problem of frequent battery replacement, suitable for long time project monitoring and outdoor operations. It includes functions such as live/neutral line recognition, breakpoints search, and more., meet different electrical detection needs, and one device can complete multiple tasks. Very suitable for home, workshop, and electrical maintenance occasion, simplifying tool carrying. Specifications: Component:ABS Measurement ranges AC12V-1000V Measurement Accuracy ±5%+3 Contactless Voltage Detection Package Includes: 1Piece Voltage Tester 1Piece User Manual note: Please allow 1mm errors due to manual measurement. Due to the differences between different monitors, the picture may not reflect the actual color.