Emerson Rosemount 0078N21N00A025T32Q8 Sensor Probe

Emerson’s Rosemount 0078N21N00A025T32Q8 Sensor Probe is a platinum RTD temperature sensor element from the Rosemount 78 series, offered as the sensor portion of a complete RTD assembly without a thermowell. This single-element sensor is designed to be used with Rosemount transmitters and connection heads, providing precise temperature measurement in process environments. The Rosemount 78 RTD assemblies are specified for an operating range typically from −200 to 500 °C (−328 to 932 °F), enabling monitoring across a wide span of industrial applications. The model number encodes configuration details, with the 0078 series indicating a platinum RTD without a thermowell and subsequent digits describing lead-wire and termination options that tailor the probe for your installation. Intended applications include chemical processing, oil and gas refining, power generation, and water treatment where robust RTD sensing is required, and the probe is designed to be integrated into Rosemount sensor heads or transmitters for direct process measurement.