Voltage Multifunctional Socket Circuit AC/ Voltage Tester Intelligent Power Polarity Leakage Test Tools Material: ABS Color: as the picture shows, (Due to the difference between different monitors, the picture may have slight color difference. please make sure you do not mind before ordering, Thank you!) Package weight: 70g Package size: 10x5x2cm,(Please allow 1-3mm error due to manual measurement. please make sure you do not mind before ordering.) Sound And Light Alarm: The Use Of ABS Insulation Materials To The Danger Of Electric , And Greatly Improve The Level. Natural Sensitivity: Bid Farewell To The Traditional Method Of Electricity Measurement, For You To Solve The Problem Of , Effort And Sensitivity Of Electricity Measurement. Inductive Alarm Detection: Adjust To L Or H, When The Nearby AC Voltage Is Detected, The Green Light And Alarm Sound. Line Breakpoint Search: Adjust To H, Test Pen Along The Detection, When The Green Light Is Not Bright, The Alarm Also Stops Is The Breakpoint Location. Firewire Detection: The Firewire Will Set The Gear To O, And When The Red Light Is On When The Measuring Pen Is Inserted Into The Hole, It Is The Firewire; When The Indicator Pen Is Inserted Into The Hole, The Red Light Is Not On.