12 V Schaltungsprüfer Sonde 3-48 V Elektroauto Sicherung Testlicht Spannungsstift Detektor

Sharp steel probe easily pierces wire insulation to inspect circuits. Bulb: 3W, Bulb Cord Length: 102mm/4.0". The circuit board has line protection function, which is safer and more resistant to burning.

eBay