The BD Clay Adams Model 420630 is a compact illuminated viewer used to improve the visibility of tube agglutination reactions during blood grouping, crossmatching and related serology procedures. Its adjustable gooseneck lamp and concave magnifying mirror help the operator inspect reaction patterns without changing the sample.
Each refurbished viewer should be checked for lamp operation, mirror condition, arm adjustment and electrical safety before supply. The installed bulb and power configuration are confirmed from the individual unit.
