Ultrasonic wattmeter. Characteristics/components include electronic and mechanical design to provide superior performance and greater durability; clear Plexiglas tubing on the front panel that allows the operator to immediately determine the liquid level within the sealed reservoir; and power measurements that can be conveniently read on the LCD display. This unit is a one-of-a-kind instrument used by biomedical repair persons who regularly test therapeutic ultrasound devices. Unit is battery powered.