McDonnell & Miller 304400 Cover ensuring reliable signal transmission for

ensuring reliable signal transmission for proportional temperature control

for DC applications

Is the lens replaceable

it provides the mechanical longevity required for high-cycle applications

McDonnell & Miller 304400 Cover ensuring reliable signal transmission forThe McDonnell & Miller 304400 is a genuine replacement flow switch cover (Model FS4 3COV) engineered specifically for Xylem FS4 3 liquid flow switches and the AF 1, AF 2, and AF 3 airflow switch series. In demanding commercial boiler and process piping environments, maintaining the integrity of the switch housing is critical for protecting the single pole, double throw (SPDT) snap switch and internal sensitivity adjustments from dust, moisture, and