ESI 307M Fuse Buddy Mini Current Loop, Factory

I work as a professional auto mechanic. I am an ASE Master Tech with advanced certification. I purchased this Fuse Buddy to use with my Snap-on Low Amp Clamp. With this Fuse Buddy I am able to plug it into the fuse and then clamp my low amp clamp around the loop and diagnose a circuit. When I purchased this I was going to diagnose a problem with a fuel pump. With the Fuse Buddy I didn't have to go under the car I could easily do my diagnoses with my amp clamp and the fuse buddy. The best part of it was when the problem happened I could see that I was still getting normal amperage to the fuel pump so I knew then that the problem was not with the fuel pump. These Fuse Buddy's are a great find for anyone working in the field and wants to save a little time. The best part is that you can use them on any electrical circuit that requires a fuse. This comes in real handy when the component you want to test is hard to get to such as a fuel pump. Most automotive electrical devices are in series with the fuse so if you check the wiring diagram and this is the case then the amperage will be the same threw out the circuit. Like I said these Fuse Buddy's are GREAT!!!!!!!!!!

Finally someone makes devices like this instead of us trying to get a bunch of male and female wire connectors, fuses and wires to do lab scope tests on cars. Just pull out the fuse, use the Current Loop that fits the fuse socket, install the fuse you removed from the vehicle in the side of the Loop, install the Loop back in the fuse socket and test the devise or circuit. Good quality, good size, fast results and cannot damage the vehicle. They just need to make one that fits the low profile mini fuse now.

I love these loops when using an amp clamp with our oscilloscope.

I use this Fuse Buddy Mini Loop to check current in automotive circuits. I use it with both my current loop multimeter and with my oscilloscopes by using an amp meter probe. I use the Hantek probes. it works well but it would be nice to have a slightly larger loop to make it easier to attach the multimeters and probes. It does make it relative quick and easy to check a circuit if you have easy access to the fuse box. It would also be nice if the tool could have attachments so it could be used with different sized fuse sockets. Overall, I like the ESI 307M and would buy it again.

Seems well built.

The only thing missing is a voltage tap.

You can get an amperage draw reading thru the fuse test port by using a multimeter forcing the current(amperage) thru the meter leads NOTE: Polarity has to be correct orientation(or you will blow a meter fuse).. But this tool is idiot proof basically. Just plug and play and put an amp clamp thru the red wire hoop. Take your reading and your done. Then troubleshoot the issue if need be. This tool is easy to use compared to a conventional amperage test procedure

This is a must-have for the automotive diagnostic professional. Much more professional than rigging a jumper wire. I use this to hook a labscope up and look at waveforms for fuel pumps. Great product, well made.

Love this. Best bit of kit I ever bought for my amp clamp. Will need to buy the standard blade one soon.

I plan to use this with busman circuit breakers with a mini footprint. That way I can monitor current overloads without losing a fuse. I bought two of these, from different places, because I was impressed by the usefulness. I will cut the loop on one of them and terminate with male and female in-line connectors. This will allow me to route the current through a shunt resistor and use a voltmeter. My current meter can be on the second fusebuddy, and so I can monitor two currents at once.

excelente herramienta para diagnostico de consumo de amperaje

will help with finding problems

Very good but a little expensive