The E-Pen II is a hand-held probe that is ideal for stimulating acupoints. It can be used with the MicroPlus and Best Devices. It is a Combined Positive/Negative Acupoint Electrode, so there is no need for a return electrode. It has 42″ wire connected to it, and an adapter with dual .08 pin jacks at the end. The surface area of the pen tip has a 1/2-inch diameter.
By request can be adapted for multi-use with 2.5mm plug at the end.