AIR DIFF PRESS SWT 0-10"

AIR DROP

DIFF PRESS SWITCH, 0.4-4.0wc

DIFF PRESS SWITCH,.08-1.2"H2O

DIFF PRESS SWITCH, 0.2-2.0WC

DIFF.PRESS.MONITOR,0.08-0.8"wc

ROOM HYGROSTAT 30 TO 90% RH

ROOM HYGROSTAT W/ EXT. STPT