Digital display adjustable power meter

The utility model discloses a digital display adjustable power meter, comprising a resistive element and a control unit, the resistive element is arranged in the cavity of a high and low temperature test chamber; the control unit is arranged outside the high and low temperature test box body, the control unit comprises a PID controller, a silicon controlled element and a power meter, one end of the PID controller is electrically connected with the resistive element, and the other end of the PID controller is electrically connected with the silicon controlled element; one end of the power meter is connected with the resistive element, and the other end of the power meter is connected with the silicon controlled element; and the silicon controlled element can be electrically connected with the power supply. The digital display adjustable power meter provided by the embodiment of the utility model not only can realize rapid connection and detection with equipment, but also can avoid tedious steps of disassemblin