When hooked to my Elecraft KX3 it has a ground ...
594193
When hooked to my Elecraft KX3 it has a ground loop.  Works when I plug in audio out to in on the Behringer, but there is an oscillation when I plug Behringer out to mike.

Useless
1470239
I just set this puppy on the hitch of my camper and I know what direction I need to go to get it level. My camper requires it be on faily level ground before starting the setup process and this works perfectly!
2175005
I have a air pressure pump which works fine when powered via  trucks 12 volt receptacle, however when filling my bikes tire the pumps cord is a little short and awkward. My driveway has about a 10 degree slope or more and is difficult to keep bike upright to fill. Now I just wheel bike into garage on level floor and out of the weather.
3145990
I would buy it only for ground. I would get something different  for the power. I guess they have their own functionality hince the 3 stars. I hope this helps, Plus I think they are too expenssive for my taste.
3540962
I liked that it's electric and starts with push if button, it has different depths you can set, and was really surprised of the power, how it works through dirt.
4246820
As described. One 110 volt receptical would not accept 3 prong plug. Had to adjust retention spring. Note that manual cautions that grounding of generator chassis is required. In the field this would mean driving an 8' 3/8 diameter copper clad grounding rod into the earth to a depth of 6 feet or more depending on soil moisture. Since the cabinet is non conductive plastic I employ an in-line ground fault interruptor. Do not touch ground lug when running. Test ground for voltage occasionally
3580183
The problem is with the green part.  When the rubber part presses against a flat surface, it pushes the green upwardly at the end where the lever is, causing the entire green part to pivot about the vertical post.  Because the rubber end is not freely pivoting, it cannot sit flush against a flat surface.  I am keeping this unit only because it may be useful for clamping non-flat surface.
1863637
I can't see any reason why they don't just have the standard connector on the other end (hey, worst case scenario you could just cut it off!) thus making you solder on connectors from whatever came with your head unit.  I was also a tad thrown off by one of the color codes as well not matching the standard connectors quite.  (If I remember correctly it was a blue with a line through it instead of solid blue.  I forget just which it was however.)

Also, probably not their fault, but there's no ground wire, which I kind of don't understand.  Surely the stock head unit doesn't rely on a chassis connection for the ground?  They don't really design that part of the vehicle for a random ground connection either, so I had to rig up something with a screw and nut that will hopefully hold, but I can't really be certain...
2971915
I have this "installed" in my prius.  I connect jumper cables to the 12v in the trunk and connect those to the supplied power cables.  I left the ground floating because i am a bad man.

I use it frequently to power things like speakers and computers and projectors and video games.  Aside from being an efficient automobile, my prius is also an efficient generator, now.

Woohoo!
2239233
I bought this for a 12,000lb winch as I wanted a simple ground cable without making my own ends, upon arrival I noticed I needed one side to be a different end, and my god, the cable is so strong it took boltcutters to cut one of the ends off. my ground connection is night and day difference on this cable and I would recommend it to anyone
1247519
I wired it up to my Quad. Double checked the wiring. Plugged in the battery and got nothing but sizzle and smoke. Looked at the wiring harness and compared it to the provided diagram and the polarities are reversed.
4032289
as another reviewer experienced, the signal did not cancel after the turn, so looks like perhaps a design flaw.  however i was able to pretty easily swap the electrical parts out of this switch into my old one (where the mechanical parts still worked fine) to get it working as it should.
915711
Good cord with three prong grounded connections
4224858
Not sure if I am using it right, seems like it tears the grass up as compared to pushing the new grass into the hole. Plus you have to open all the way, if not it will start closing while you repair the divot, may go back to pitch fork
4521906
Wish this had some reasonable way to mount the shunt onto a flat surface.  Bought this for a DIY electric skateboard setup just to monitor the battery voltage and amperage flow to an ESC that drives the motor.  In just wiring things up and doing some basic testing it seems to be working fine but I haven't been able to see the amperage get above 2amps since it's sitting upside down on the bench till I'm able to make and attach some mounting parts to hold this onto the board.  Not to say they should account for my use case but seems a lot of other ammeters do come with some mounting bracket attached so just something to be aware of.
938190
it takes an extremely good contact with the probe and ground against whatever 12v power is being tested.  not reliable for that reason.
2508822
This connects negative not the positive m not good with  i'll

 Switch is off the negative not the positive , Not good when using outdoor  ground