The Aerocet 380 Portable Dust Monitor is a highly portable and user-friendly device designed for monitoring airborne Total Suspended Particulate (TSP) levels in indoor workplaces and public environments. The instrument uses forward-laser light scatter technology for broad particle size detection and has an ultra-low detection limit of 0.1-micron particle size with a detection range of 0 to 100,000 µg/m3. The device can be used for continuous sampling with an AC adaptor or for 8 hours with its rechargeable batteries. The Aerocet 380 has a user-friendly interface with two buttons and a rotary dial for easy access to menu-driven setup and sampling and offers selectable sample modes and alphanumeric location IDs. The device can store up to 15,000 sample records and comes with download utility software for easy access and analysis of data.