Siemens DDC 540-378 AutoZero Module 321894-708 Does this unit come with

Does this unit come with a remote capillary

leak-free seat for sensing hoses

Equipped with hollow head setscrews for secure shaft mounting

This valve features a 1-5/8" mounting center

Siemens DDC 540-378 AutoZero Module 321894-708 Does this unit come withThe Siemens DDC 540 378 AutoZero Module is a high precision calibration component engineered for Siemens building automation systems. This module serves as the primary solution for mitigating sensor signal drift within analog input loops, ensuring that pressure and airflow transducers maintain a stable baseline. By automating the zero point adjustment, the 540 378 eliminates the need for frequent manual recalibration in VAV systems and air handling