Dresser Masoneilan® has released its 12400 Series, the first level instrument that integrates level transmitter, controller and switch functions in a single device. It is designed for use in the refining, petrochemical and energy industries and combines level measurement, global level loop control and low- and high-level switch functions into a single instrument. With a combination of features, such as smart filtering, HART® communication protocol compatibility and an optional 4-20mA analogue output signal, among many others, the 12400 Series offers process control for a wide range of applications, including severe service. The unit meets SIL2 compliance (pending) and is certified in full hazardous areas, including ATEX, IECEx, FM and FMc/CSA.