Suitable monitoring and control of process temperatures require exceptional guidance by the producer or a basic understanding of the measurement techniques required on the part of the customer.

The 4180 calibrator has a temperature range of –15 °C to 120 °C, with radiometric (non-contact infrared) display accuracy as good as ± 0.40 °C; and the 4181 calibrator measures from 35 °C to 500 °C, ...