ESI 305M 30 Amp Fuse Buddy  Mini Tester
Check circuit amperage draws easily. Just plug Fuse Buddy into the circuit to see the amp draw. Remove the fuse and replace into the Fuse Buddy end piece, thereby maintaining fuse protection during testing. Very handy to check amp draws on difficult to access parts like fuel pumps and A/C compressor clutches. Variety of uses and a time saver.