The Yokogawa DM1B-015G-1C2A2S2-003-0202 is a highly configurable Multi-Function Signal Conditioner and Isolator from the Yokogawa µR Series (often marked as UT or UT55).
This DIN-rail mounted unit is designed for complex signal processing applications. It is specifically configured to accept a frequency input signal (from a device like a turbine flowmeter or digital tachometer), perform signal conditioning and isolation, and provide two different types of analog outputs and two digital status outputs. The lengthy suffix code defines its precise input range and output scaling.