Excellent unit for the money
Current Solutions InTENSity Select Combo
I use this unit regularly in my practice, at North Jersey Whole Health Center (www.njwholehealth.com), both in the office and when making home visits, and it works beautifully every time.
I love that I can switch between electrotherapy modes within the device, depending on the patient's needs and sensitivity to stim. I've been using it for close to 2 years, and I'm only on the third 9v battery. The leads are still in excellent shape, and I really beat the snot out of this thing.
Overall, I highly recommend it.