Isothermal Technology Ltd is involved with the research, development and manufacture of temperature calibration products. Equipment produced includes Standard Platinum Resistance Thermometers, fixed point cells and associated equipment which are used in metrology laboratories throughout the world. Industrial temperature calibration equipment includes portable dry block calibrators, thermocouple referencing and more. These pages provide information about our product range and services along with reference material of interest to those involved in temperature measurement and temperature calibration. From metal block baths for calibrating thermocouples and RTDs to high accuracy comparison baths.