The PyroSigma is the same very small size as the PyroNFC, and features a built-in OLED display and push-buttons for configuration. Engineers can now see the measured temperature in-situ on their machine, as well as on an indicator in their panel via the sensor's voltage output. The PyroSigma also features a configurable open-collector alarm output. Both the alarm output and the voltage output may be used at the same time.

This highly versatile unit includes many of the advanced signal processing features often found on sensors with a much higher price, including averaging, peak/valley hold processing and reflected energy compensation. The PyroSigma is a general-purpose sensor for measuring non-metal materials from 0°C to 1,000°C. Metals can be measured provided they are painted or coated first to make them non-reflective.

PyroSigma sensors are compatible with the existing PyroNFC mounting bracket and air purge collar accessories.