⚡ Never blow a fuse again—test smarter, not harder!
The ESP Li'L Popper 5A Control Circuit Tester is a compact, resettable fuse tester designed for HVAC and electrical professionals. Rated at 5 amps, it fits standard fuse receptacles and prevents fuse blowouts during system testing. Featuring a self-adhesive backing for easy installation and compatibility with multiple popular fuse models, it streamlines maintenance and troubleshooting with reliable, reusable performance.
A**R
Works great
Would recommend
R**O
Good
Use a lot in HVACR for the quality
R**N
Works
Have to change ends to fit fuse block
T**Y
Great little board saver!
Use this for hvac diagnostics. Keeps you from burning through fuses while diagnosing and protects the components.
F**D
durability and space requirements
excellent product for furnace and ac repair,and very helpful for testing heating and ac 24volt ac systems
A**R
Poppers are very handy
I use these in my business no hunting just get on line and there they are, fast and consistent
N**K
Must have
Prevents replacing fuses during diagnostics
C**H
3AMP, not 5 AMP
Falsely advertised!
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