721134 ELECTRONIC MANOMETER;It replaces your fragile and messy U-TUBES. Simply turn the;instrument on by pressing the power button and press and;hold the zero button for approx. 4 seconds. Connect...
721209 DUAL INPUT MANOMETER;Range -55.0 to +55.0 inches water column.;Resolution to 0.01";Provides different measurements, 11 units of measure.;Data hold, LCD display w/backlight, Auto Power Off.;9 V...