The ASI 20 MD has been specifically designed for industrial leak testing machines with advanced designs to meet the needs of performance, up time and self diagnostics required for industrial leak detection applications. It offers auto-calibration with temperature compensated, dynamic calibration, background suppression, D.F.S.R. module. The design is compatible with most industrial leak test environments and applications. Flexibility, ease of operation, high level interfacing, and built-in capabilities are basic features.