The Yokogawa UT150-AL S5 is a Digital Indicating Controller from the UTAdvanced family, specifically designed for temperature control applications.
The key differentiator of this model is the "AL" in its type code, which signifies it is equipped with a built-in alarm function as a standard feature. The "S5" suffix indicates a specific configuration, typically related to the control output type (e.g., a relay output for driving heaters/contactors) and the power supply specification.