Raytek is adding two short-wave spectral models to its MI3 range for non-contact temperature measurement. The new 1M/2M models can measure particularly reflective surfaces more accurately than long-wave infrared sensors. They cover a wider measurement range than any of the competitors' products. A single model measures 500 - 1,800°C (1 ?m) or 250 - 1,400°C (1.6 ?m) respectively Measuring points can therefore be set up extremely cost-effectively, particularly as up to eight individually addressable heads can be connected to a single MI3 communication box — a further USP for Raytek's MI3 systems. The fieldbus-capable communication box with LCD display is available with either a metal or top-hat-rail housing. Naturally the short-wave sensors still have all the advantages of the MI3 series: They offer excellent data reliability, since the measured value is converted into a digital signal directly in the sensor head. They are easy to use and Plug&Play. They are rugged (IP65), offer excellent EMC characteristics and can be used in ambient temperatures of up to 120°C without cooling. In addition to this, the short-wave sensors are fitted with a laser sight as standard. They deliver a good definition of 100:1 and are extremely quick, with a reaction time of just 10-ms. The new 1M/2M temperature-measuring heads are particularly suitable for use in solar-grade silicon crystal growing, in secondary metal working and processing and for manufacturers of ovens and heating systems.