Abstract: An apparatus for detecting the acupuncture points on a patient and for applying electrical stimulating signals to the detected points, comprising a generator delivering sawtooth signals to a contact needle of a probe through a first fixed resistor and a variable resistor. For operation in a stimulation mode, at least a second fixed resistor and at least a second capacitor may be placed in parallel respectively across the first fixed resistor and across a first capacitor of the generator by means of appropriate switches. A voltage booster delivering at least one DC voltage higher than that of a main supply source of the apparatus may be switched on for increasing the peak-to-peak voltage of the sawtooth signals in the stimulation mode.