The sidepak AM520i is the industry 's smallest, lightest personal exposure monitor. It fuses TSI's proven instrument design and intuitive controls,with portability for long-running real-time monitoring in environments requiring intrinsically safe instrumentation. With direct reading capabilities, the Sidepak AM520i gives you the whole picture, capturing minute by minute data for review and analysis to ensure you are on the right path toward both regulatory compliance and worker safety.