The Optris CSmicro 3M infrared temperature sensor has a spectral range of 2.3μm for measuring the temperature of metallic surfaces as low as 122°F for secondary metal processing, metal oxides, and ceramic materials. It can even measure through glass. The CSmicro 3M saves space by housing electronics in the cable with a small stainless steel sensing head .

The sensor is available in two temperature ranges: 3ML (122 to 662°F) and 3MH (212 to 1112°F). Optical resolutions are 22:1 for 3ML and 33:1 for 3MH. Accuracy is 0.3% of reading + 3.6°F, with a response time of 25ms .

The scalable 0–5/10V analog output also includes a simultaneous alarm output. Additional functions include aiming support, self-diagnostics, and temperature code indication, with a programmable functional input for setting external emissivity and ambient temperature adjustments. The sensor also features adjustable signal processing, peak hold, valley hold, average, and an extended hold function with threshold and hysteresis .

The Optris Compact Connect temperature analysis software is available as a free download. The sensor operates on 5 to 30 VDC power supply with 9mA current draw and is IP65 NEMA-4 rated .