For the CAS 125 spectroradiometer, Instrument Systems decided to equip the device with a CMOS sensor. A specially developed electronic readout circuit with Recipe mode enables very low measurement times of 0.01 milliseconds. Another unique feature of the CAS 125 sensor is its built-in temperature stabilization feature. This results in dark current behavior that is independent of the ambient conditions, enabling the CAS 125 to ensure optimum long-term stability even in environments where temperatures fluctuate. The spectrograph design is based on the high-end CAS 140D device, which is already well established in the market. This gives the CAS 125 a level of optical performance comparable to that of the CAS 140D in terms of both stray light suppression and optical throughput. These key features significantly improve automated processes in LED production, thus boosting productivity.