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Your cart is empty.Li'L Popper / LIL Popper by ESP 3 AMP Control Circuit Tester. Insert into the fuse receptable in place of a standard fuse , allows system testing or service work without blowing fuses , simply press the button to reset the device
Kaleb Hill
Reviewed in the United States on May 18, 2025
Use it almost everyday
Customer
Reviewed in the United States on January 5, 2025
Good to have
Jenny or Jon
Reviewed in the United States on January 10, 2025
Was considering going rogue and buying what looked liked generic breakers with the same ratings, just to save a couple bucks. Glad I didn't as this is rated/tested/sourced specifically for furnace fuses, and also comes with proper jumper wires and hardware to mount. 100% recommend if you have a furnace that blew a fuse and you need to test for shorts without paying $8 a 2 pack at your local hardware store...
Martin Bracellari
Reviewed in the United States on February 9, 2024
I don’t need to blow up 5 fuses anymore very good for troubleshooting for shortage 24v highly recommended.
taz blackwell
Reviewed in the United States on February 6, 2024
They work good. Check the one in your heater for the size fuse and get one.
David Goodall
Reviewed in the United States on April 26, 2024
Great
robert charley
Reviewed in the United States on April 13, 2024
Works great as advertised. If it is 3amp hvac fuses you are working on, you will need to change the ends as they are not compatible.
Josh Hewett
Reviewed in the United States on September 26, 2022
I have been using this 3amp product as well as the 5amp for many years. I will continue to use them until they are unavailable.
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