Keeler Professional Streak Retinoscope 3.6v Lithium Battery and Mini Charger

600 lux of brilliant halogen illumination The Professional Combi Retinoscope guarantees you enough light to refract even the most difficult eyes. Neutralisation check (Patented) The only Retinoscope allowing rapid confirmation of neutralisation. In both Streak and Spot modes you can change the beam from divergent to convergent enabling you to cross check the accuracy of the neutral point. The ability to double check neutralisation in the upper position guarantees the assessment is correct every time. Precision magnetic control (Patented) Improved 360º access to a single control for both rotation and convergence adjustments. The precision movements are achieved by use of rare earth magnet technology