621
VARIED MEASURING INSTRUMENT DIGITAL MANOMETER,[621/TPI],RANGE:0~4.29 PSI (300MBAR),FOR FURNACE BURNER BALANCING WORK.
TEST PRODUCTS INTERNATIONAL INC.
665
DIGITAL MANOMETER, DUAL INPUT, 7 SELECTABLE UNITS OF MEASURE, 1/4NPT FITTINGS, DATA LOGGING. SUITABLE FOR NON-CORROSIVE GASES ONLY
