I use the Rebuilder Medical 2407 unit. Google "Rebuilder Medical 2407" as I am unable to post a link because I am new.
It has 3 settings: A "rebuilder" setting which sends a pulse to both feet and switches poles each time (what I usually use) a tens unit setting (continuous), and an electro muscle stim setting which I rarely use, which sends a 2 or 3 second continuous pulse then is off for a second, and repeats. The rebuilder setting gives me immediate temporary relief. I used to use it twice a day every day, now I use it less often.
You can use it in a foot bath (put feet in separate buckets), adhesive pads, foot pads, conductive socks and gloves, knee straps, elbow and ankle straps. I use the adhesive pads the most often. I didn't like the conductive socks or gloves very much, and the foot bath is the best but takes the most effort to get ready. It goes for about 20 minutes, and then stops. You have move the dial back to zero, and wait a minute or so before you can start it again.
I take it on vacation with me with the adhesive pads, and when I am working at my desk, I will use it. It does give immediate relief to me, and does seem to keep it from getting worse. I purchased this on my own, but in some cases you can get it covered by insurance. It is $1,480 for the2407 model which allows you to do feet and hands at the same time. You can also use it with a 9 volt battery, but it isn't as powerful. I love this unit.
The model 300 is $1,060 but only has one input, so you can either do hands or feet, but not both at the same time.
I have never regretted my decision to purchase the 2407 model. In combination with using this, I take Benfotiamine (B1) 600 mg (2 x 300 mg/day) and Methylcobalamin (B12) 5000 mcg/day. I notice when I get lazy and don't take them, the neuropathy gets worse.
Tens unit not strong enough.