Multiuse potentiometer with insulated button

The utility model relates to an insulation type knob multipurpose potentiometer, belonging to a component in scientific research apparatus, which comprises a fixed positive electrode (1), a fixed negative electrode (2), a spring leaf (3), a ABCDE element (4), an insulating strip (5), a knob (6), a spring leaf fixed point (7), an electrode contact (8). Wherein the insulating strip(5) is fixed on the knob(6), which can be adjusted according to requirement. Since a contact is arranged on top of all spring leafs (3) of the positive electrode (1) to contact closely with the fixing negative electrode (2) to power on. The knob (6) and the insulating strip (5) are integrated, therefore turnning of the knob(6) will power on or off. The utility model has advantaged of strong stability, high sensitivity, and vailability of minitype or huge type.