The Raytek 3i Plus high temperature infrared thermometer is designed for demanding industrial applications including primary and secondary metal processing, petrochemical, and power plant operations. It offers two models: the 1M (700-3000°C) with 1.0µm spectral response, and the 2M (400-2000°C) with 1.6µm spectral response.

Optical resolution of 250:1 ensures accurate readings at long distances. Dual laser and scope sighting options are visible even against "red hot" backgrounds. Heat resistant "Red Nose" warning ensures operator safety. The intuitive user interface enables easy parameter setup, on-site data analysis, and trending. Data transfer to PC or smartphone via USB or Bluetooth is supported, with included DataTemp software for real-time communication, data storage, and graphing.