Fluke's 721 precision pressure calibrators are the ideal tool for gas custody transfer applications. With dual isolated pressure sensors, they allow users to take simultaneous static and differential pressure measurements with a single tool.

The 721 and 721Ex can be configured by selecting either a 16 PSI (1.1 bar) or 36 psi (2.48 bar) low-pressure sensor then add any of seven high-pressure ranges including 100 psi, 300 psi, 500 psi, 1000 psi, 1500 psi, 3000 psi, or 5000 psi (6.9 bar, 20 bar, 24.5 bar, 69 bar, 103.4 bar, 200 bar, or 345 bar).

The 721Ex is also intrinsically safe with IECEx and Atex Ex ia IIB T3 Gb (Zone 1) and is ideal for gas flow calibration applications.