500 to 1650°C
E.g. for production of semiconductor materials, metal forging and molten glass


Strong: Sensors from the Thermalert 4.0 series have a stainless steel housing, are built for harsh environments and work without cooling in ambient temperatures up to 85°C. Different spectral ranges are available so can be used for many applications.

Reliable: Developed for various temperature ranges with very good optics. Optionally available as 2-wire sensor or with digital communication (RS485, Ethernet, Ethernet/IP, PROFINET IO) and analog outputs. Almost all models have a USB connection for easy configuration.


  • the sensors are robust, small and easy to install
  • laser beam as target (almost all models)
  • interchangeable with Raytek and Ircon sensors and accessories
  • many accessories available (for high ambient temperatures, cables …)


Temperatuurbereik 500 to 1650°C
Spectraal Bereik 1 µm
D:S 150:1
Smallest spotsize 1.3 mm
Indicator laser
Response Time 10 ms
Fiber option -
Bijzonderheid Integrated stainless steel Sensing Head