Dwyer DHII-007
Dwyer DHII-007 : Digihelic II Differential Pressure Controller, Selectable Engineering Units: 10" w.c., .8333 ft w.c., 254.0 mm w.c., 25.40 cm w.c., .3613 psi, .7356" Hg, 18.68 mm Hg, 24.91 mbar, 2491 Pa, 2.491 kPa, 24.91 hPa, 5.780 oz/in², 2x SPDT Relays, 1/8" Female NPT, LCD Display