The Gas Monitor for Total Aromatic Compounds (TAC) and Benzene is a highly efficient and reliable field instrument for measuring benzene levels. It uses PID technology with a 10.0 eV lamp and filtration tubes to provide accurate and fast results. The monitor has a range of 10 ppb for benzene and up to 4000 ppm in TAC mode. It also features an internal pump with a flow of 220 ml/min, a rechargeable Lithium Ion battery for 24 hours of operation, and a large LCD screen for easy operation. With its audible, visual, and vibration alarm, the monitor is suitable for use in hazardous environments. The device is also approved as intrinsically safe equipment and has a degree of protection of IP65.