Contemporary scientific investigations have demonstrated that subcuits underlying the acupuncture point is a rich supply of nerves and blood vessels. On the boby surface, the electric resistance of acupuncture points is lower than in its surrounding areas. Whenever any organ of the boby undergoes pathological changes its corresponding meridian and points show changes and certain relatively specific pathological reaction points such as auriculo-acupuncture points, meridian points appear on the skin surface. The electric resistance of the reactive points is further lowered than in normal conditions. It can be readily located by means of an instrument which is sensitive to resistance changes.When the probe head touches a low electric resistance point, the loudspeaker gives a sound signal. Its pitch rises with the lowering of the electric resistance of the skin. When meridian points, auriculo-acupuncture points and reactive points are more accurately located, more efficient therapeutical results can be obtained while needling these points. With this instrument and method of detection, acupuncture of the points thus located usually produce a strong needling sensation and satisfactory therapeutical results. The use of this instrument makes it easier to locate points, especially for the beginners. The etecting of auriculo-acupuncture points may also serve as an aid to diagnosis. The Point Mate is an easy to use, pocket portable locator. Convenient palm-size, 2.3″ x 4″ x 1″. Features sensitivity control and point location with sound and green LED light. Includes hand ground pole and search probe with 3.5 mm jack and 9 volt battery