This portable sampler is controlled by a portable timer, which can be set to program six sampling runs within 24 hours. The sampler has been designed for easy installation at a variety of sampling locations. When used outdoors it is mounted on a variety of structures, such as telephone poles, light posts, fence posts, etc. The Dust-Sol DS-2.5 Samper is a device for monitoring PM-10 and PM 2.5 Air. Small durable, lightweight, and battery operated, it is a ideal for monitoring in remote areas or where no permanent site has been established.