The King Instrument 7710 series rotameter utilizes a float and tapered tube design, resulting in longer and more linear scales, better pointer stability, and 40% greater accuracy than competitively priced products . Housed in 316L stainless steel, the 7710 series rotameter features a 120mm direct-reading, detachable scale and can be used in high pressure systems up to 1500 psi and high temperature applications up to 350°F .

The meter offers a wide range of maximum flow options, from 33 GPH to 450 GPM for water and 4.0 to 100 SCFM for air. It provides ±3% full scale accuracy with 1% repeatability and a turndown ratio of 10:1 to 12.5:1 . The maximum ambient temperature range is 33 to 125°F. Options include additional flange connections, various O-ring materials for chemical compatibility, 4-20mA transmitter, and single or dual inductive slot sensors for alarm functions .