The Optris CTi 3M infrared thermometer is designed for precise, non-contact temperature measurement of metals, secondary metal processing, metal oxides, and ceramic materials. It operates across a wide range of 86°F to 3362°F with a 2.3µm spectral range. The device provides response and exposure times as low as 110µs, making it suitable for fast industrial processes requiring accurate temperature control .

The CTi 3M offers multiple optical resolutions from 12:1 to 75:1, allowing flexibility for various distances. Measurement uncertainty is typically ±2.7°F or ±0.3% of reading, depending on the model. Adjustable emissivity and transmissivity settings (0.05 to 1.10) ensure accurate readings across different materials. The unit maintains performance in environments up to 185°F without additional cooling .

Electrical options include analog outputs (0/4 to 20mA, 0 to 5/10V, thermocouple K) and multiple digital interfaces such as USB, RS232, RS485, Modbus, Profinet, and EtherNet/IP. Power is supplied by 8 to 36VDC, and configuration is supported through CompactPlus Connect software or the IRmobile App. The unit has an IP65 (NEMA 4) environmental rating for dust and water resistance .