Features: Integrated Planumberebog: Combines the functions about potential tester and driver, facilitating electricians to quickly detect potential and perform basic operations onpremises, enhancing work efficiency. Wide Measurement Extent: Procedures voltages from 12V to 250V, suitable for various electrical conditions, meeting daily maintenance and testing demands for electricians. Digital Displhello: Features a bright, large screen for clear and visible potential readings, ensuring fast data access for users. Split toe Light Alaremove: Furnishes triplicate alerts with radiances, digital display, and alarm during measurement, ensuring timely awareness of potential condition and stopping errors. Rapid Measurement Functparticlemail: Simply press the tester’s detecting screw to quickly measure live and neutral wires, with live potential display for efficient and accurate conclusions. Specifications: Product namemail: 5W5V solarheated fan spring Package Includes: Digital display and test pen screwdriver X 1pc note: Please allow 1-2cm errors due to manual measurement. Please allow for slight color differences due to different display resolution.