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Welch Allyn® 777 Basic Wall Diagnostic System is a modular package that combines the essential tools you need for a basic diagnostic work-up. Instrument heads not included.
3.5V wall transformer with two rheostat handles for quick light-intensity adjustments • OptiSense™ Sensor automatically turns handles on when they are removed from cradle and off when replaced • Optional Digital Clock • 8' coiled cords • High-impact ABS housing • Mounting hardware included • 108V-125V, 60 Hz • UL listed, CSA certified • 4"W x 12"L x 4"D