This simple and inexpensive pocket-sized gadget allows you to test your stimulator devices without testing them on your own body! Simply plug the lead wire pins from your device cable into the two receptacles, and watch the LED indicators light up to the frequency output and pattern. If no light, there may be a problem with the lead wire cable or battery, or the device may have a failed part
- Dimenison - 1.75 x 1.25 x .75 in.