Harbor Freight Tools


30 Amp Automotive Fuse Circuit Tester

Troubleshoot electrical problems quickly with this fuse circuit tester

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FUSE BUDDY ESI305M at $20.60 Save 27%

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This handy automotive fuse circuit tester has specially designed test leads that plug directly into your fuse box to quickly diagnose electrical problems. The tester can be used on all circuits up to 30 amps.

  • Test automotive circuits at the fuse box, plugging into ATC blade-style fuse slots
  • Simplify electrical diagnosis
  • Protects automotive circuits during use
  • Power-save auto shutoff after 30 seconds of non-use

Important Information

  • This is a clearance item.
  • This item is subject to a 20% restocking fee

Battery type
Battery(s) Included
Display type
Product Height
5-4/5 in.
Product Length
3 in.
Product Weight
0.15 lb.
Product Width
1-1/2 in.
Shipping Weight
0.30 lb.
Note: Specifications are approximate and subject to change

We guarantee this product to be free from defects in materials and workmanship 90 days from the date of purchase. Limitations apply.