For a high level of automation and easy-to-use software at a mid-range price the PC-controlled true double beam 240 AA system combines rugged and reliable hardware with our acclaimed Windows-based worksheet software. Use multi-tasking capabilities to start a new analysis while simultaneously preparing a report on past results. The 240 AA comes standard with the world's leading flame atomization system, the Mark 7 flame atomization system. The Mark 7 spray chamber is simple to use with twist and lock assembly and made from plastic components for durability.