The Smartec SMTIR2102 infrared sensors are sophisticated devices containing silicon infrared sensors and thermopiles. Thermopiles are structures composed of thermocouple junctions and convert thermal energy into electrical energy. The application of thin film technology allows the production of miniaturized and low cost sensor elements. 

The sensors can be used in measuring radiation temperature without any contact. For different radiation temperature ranges, various filters are available. The sensor type SMTIR2102 contains a temperature sensor for measuring the temperature of the sensor itself. The temperature range of the sensor-element is between -40 to 100 °C. The sensor is available in a standard TO-5 encapsulation and comes equipped with a 5.5 micrometer filter.