1、Designed to detect and find fuses that are blown in a car fuse box. 2、Adjustable probe is suitable for most sizes of fuses. 3、When the green LED is lit, it indicates that the fuse is normally powered. If the LED light does not illuminate, it means that the fuse has been blown, and the blown fuse can be pulled out and replaced with the extractor designed by the tail end. 4、It is made of premium material,durable and has long service life. 5、It is stable and has great performance while using. Features: Designed to detect and find fuses that are blown in a car fuse box. Adjustable probe is suitable for  most sizes of fuses. When the green LED is lit, it indicates that the fuse is normally powered. If the LED light does not illuminate, it means that the fuse has been blown, and the blown fuse can be pulled out and replaced with the extractor designed by the tail end. It is made of premium material,durable and has long service life. It is stable and has great performance while using. Specification: Type:Fuse Tester Probe:Adjustable Probe Package List: 1*Fuse Tester