Below is the available documentation for the HTx104-B. This unique measurement device can detect small pressure differentials as low as 0.0002” H2O between two adjacent spaces by sensing the airflow rate induced by the pressure gradient. When a reference airflow rate is provided, the HTx104-B determines the airflow rate across fixed openings. More output circuit protection than the EF-x2000-B with a true 4-20mA output option (HTA104-B) makes this the best choice for these applications.
