How much you can expect to spend on a TENS unit Basic one-modality TENS units cost between $20-$25, and midlevel units with digital controls and electrodes are priced between $25-$40.

Learn how a TENS unit can help with constipation and how to properly position the electrodes for this purpose.

Medicare may cover the rental or purchase costs of a TENS unit in some circumstances. Out-of-pocket costs may apply. Read more.