Features: This 2 in 1 digital voltages tester screwdriver combines direct current & alternating current detection, live/neutral wire identification, and battery polarity checking with not contact voltages sensing for comprehensive electrical diagnostics. Featuring a steel shaft with magnetic tip and triple safety alerts (LCD display, color coded LED, and buzzer), it ensures good performances and instantly visual/auditory feedbacks during voltages measurements. Ideal for both DIYer homeowners handling household repairs and professional electricians requiring circuit testing tools for daily electrical maintenance tasks. Perfect for safely troubleshooting outlets, verifying wire continuity in appliances, or performing quick voltages checks during automotive battery inspections without direct contact. Compact at 175mm length and 57g weight, its ergonomic design with insulated grip provides portable convenience for tool boxes storage while meeting electrical safety standards. Specifications: Component:ABS,Metal Neutral line: green light, 12 or not Fire: Traffics lights are on together, the display is fully displayed, and buzzer warning Measurement ranges: AC12-250V Power Supply:3Pcs AG13 Battery Package Includes: 2Pcs voltages Tester note: Please allow 1mm errors due to manual measurement. Due to the differences between different monitors, the picture may not reflect the actual color of the item.