Vehicle Maintenance Copper Test Pen Circuit Detection Pen

Features:
No battery drive required, simple operation, easy to use.
Made of fine quality material for long service time.
Light emitting tubes that light up when powered and trigger sensitively.
Metal clip design, can be fixed on the testing part for continuous testing, freeing hands.
The pen nib is SharpAndThin, and the special design can increase the testing range.
The wire with a length of 650mm is convenient and safer to use.