The SKI LSE-HD Air Back Purging Unit provides safe and reliable flow measurements in high dust environments. Designed for differential pressure-based flow measurements, this unit ensures maintenance-free operation with its completely automated system. The monitor integrates with averaging pitot tubes and other differential pressure-based meters, and is built from rugged stainless steel parts (AISI 316Ti/AISI 316L) to withstand industrial environments. The LSE-HD is designed for the conveying of dust concentrations up to 50 g/m³ and suitable for use in hazardous Ex zones as well outdoor conditions.