Wall Transformer GS 777 Welch Allyn (w o Heads) Electrotherapy The color and measurement may Campylobacter The color and measurement may have slight errors due to manual measurement and monitor display WITH HEADS * Without Clock or Temp * Designed to put everything needed for fast accurate diagnoses at arms length * Features handle based rheostats for quick light intensity adjustments * Modular coiled cords guaranteed for ten years * High impact ABS housing * Improved cradle design featuring OptiSenseTM an optical sensor that automatically turns handles on when they are removed from the cradles * New Halogen HPX Lamp the two heads that come with this unit are WA11710 Ophthalmoscope WA25020 Otoscope 777 Wall Transformer