The Endress Hauser 65I-30AA0AD1AABBBB is a thermal mass flowmeter designed for precise gas flow measurement. Featuring a 335 mm insertion tube and a PEEK seal, it operates reliably within a temperature range of -40 to +130°C (-40 to +266°F). Its connection is via a 1/2-inch NPT thread, compatible with common industrial setups. The device supports power inputs from 20-55 VAC or 16-62 VDC and includes a clear 2-line display with push-button controls for easy operation. It is calibrated by default for air at standard atmospheric pressure (1.013 bar/14.692 psi). Measurement outputs include a 4-20 mA HART signal, frequency output, and two relay outputs, offering flexible integration options. This thermal mass flowmeter is available through BSP Automation, providing dependable performance for various gas flow monitoring applications.