The Siemens DI-3H is an ionization smoke detector designed to provide reliable smoke detection in various industrial environments. It operates effectively within an air velocity range of 0 to 300 feet per minute and is suitable for use at altitudes between 3,000 and 8,000 feet. The detector offers a sensitivity range from 2.5 to 5.8 volts, ensuring accurate and timely detection of smoke particles. It functions well in temperatures ranging from 32°F to 100°F, making it adaptable to a variety of conditions. This proven detection solution is available through BSP Automation, providing a dependable option for your safety and monitoring needs.