The AP4C is a battle-tested flame spectrometer detector with unparalleled capabilities, utilized globally in over 75 countries. It is able to identify both conventional and unconventional threats with a wide range of detection. The AP4C is specifically designed for field use, streamlining the process with a single ON/OFF button, no complicated settings or menus, no field calibration, and no need for a filter. Its automatic detection process is powered by advanced technology, providing the shortest recovery time even after exposure to high concentrations of chemicals. With a market-leading user availability rate, the AP4C only requires an annual check for maintenance, eliminating the need for regular detector start-ups to keep it operational.