Blowing Fuses? Plug in the FUSE BUDDY and read circuit amperage draw. This handy tool plugs directly into mini fuse socket for direct testing of live circuits while maintaining circuit protection. Original fuse is replaced in-line during testing, thereby maintaining circuit protection. Makes circuit testing easier, FUSE BUDDY adapter end is shaped like a fuse. Ideal for electrical troubleshooting at the fuse box. Can be used to measure all circuit draws up to 30 Amps Can even be used to test parasitic drains (battery drains). Measuring Capability: 0 – 30 Amps / 48V DC or AC. Resolution .01A (10 milliamps), accuracy + 2%.