SystemSURE Plus is the next generation system of the world's best-selling SystemSURE II ATP hygiene monitoring system. This new system uses state-of-the art electronics with improved functionality, but still maintains its small hand-held design and affordability. With improved functionality, new software, and increased memory, the SystemSURE Plus meets the demands of the largest and smallest companies around the world. SystemSURE Plus measures surface and liquid tests for ATP (adenosine triphosphate).