[Resettable Fuse Protection-No More Fuse Burnouts]-Replace your fuses during electrical diagnostics with our innovative Resettable fuse testers. This essential HVAC tool creates a safe testing circuit when connected to fuse terminals - if the breaker trips, simply press the manual reset button to continue troubleshooting without repeated fuse replacements.

[3A+5A circuit breaker kit]-This circuit breaker combo is the only toolkit HVAC pros need in their toolbox!3 Amp fuses hvac model replaces Zebra ZK003 ZK-003 POP-3 SPOP-3 Supco POP3 SPOP3 G33039 G33-039 5 Amp fuses hvac model replaces ZK005 ZK-005 POP-5 SPOP-5 Supco POP5 SPOP5 G33040 G33-040 serves as 3amp fuse hvac and fuse popper hvac alternative.

[Universal Compatibility]-Fuse testers compatible with all HVAC systems (including residential/commercial AC units, furnaces, and heat pumps), power equipment (generators, air compressors, marine electrical systems), and specialty applications (hot tub installations, appliance circuits, diagnostic tools) that utilize standard ATC 3A or 5A blade fuses, featuring UL-certified safety standards and adhesive mounting for temporary troubleshooting across multiple industries.

[Easy To Use]-When troubleshooting electrical issues, simply replace the fuse with our circuit tester. If the button pops out, you've instantly identified a short circuit! Push to reset and continue testing – when the button stays in, you've solved the problem. No more guessing, just fast and accurate diagnostics!

[Package Include]-1 x3 Amp circuit breaker,1 x 5Amp circuit breaker, 2 x Hex Nuts, 2 x Grip Nut Ring,5 x 3Amp fuses,5 x 5Amp fuse,gift for HVAC technician.