This microscope combines comprehensive performance in imaging and analytics with a unique environmental mode (ESEM), which allows samples to be studied in their natural state. It is ideal for academic, industrial and government laboratories requiring versatility and ease of use. The Quattro ESEM is equipped with a field emission gun (FEG), which delivers superb resolution. Three vacuum modes (high, low and ESEM) provide the flexibility to work with a wide range of samples suitable for all available SEMs, including those that outgas or are otherwise incompatible with vacuum.