Searching for the best interferential unit? DME-Direct carries a wide selection of high quality interferential units for clinically effective pain relief. You'll find brand name models all tested for their ability to penetrate deeper than TENS into muscle for managing chronic pain. We carry both analog and digital style interferential unit products for patients, doctors, clinics, therapists, and more. All models have undergone rigorous testing and produce a higher waveform for penetrating deeper into tissue for a better analgesic affect. Patients will appreciate how they're both comfortable and effective for daily use. Interferential unit prices vary depending on the model and its array of features. Search below to find your favorite device.