We are offering digital differential pressure gauge. Mounts in industry standard holes 1.6″ panel depth universal power 16 -265 vacvdc (2) 8amp spdt relays accuracy 1% (better available) large 0.5″ led display led process arch measures flow velocity 15 selectable units optional 4-20ma output filter status duct static pressure clean room pressure building pressure fan blower pressure paint booths dust collectors glove box pressure bubbler systems laminar flow hoods cabinet purging