U-90 type milliwatt ultrasonic power meter is a high sensitivity, precision micro-power ultrasonic measuring instruments. This instrument is milliwatt ultrasonic power measurement standard is mainly used for metrology departments, measuring a variety of medical ultrasound diagnostic ultrasound output power. Its advantage is that a simple operation, good stability, small size (26 * 18 * 12CM3), light weight (only 2.5Kg), particularly convenient test fate. Technical parameters Measuring range: 1 ~ 100mW Resolution: 0.1mW measurement frequency range: 0.5 ~ 10MHZ relative error: ≤ ± 10% supply voltage: 220 ± 22V