A dry block calibrator, also known as a dry-well, is used in accurate, liquid-free calibrations of temperature devices, such thermostatic switches, RTDs, thermistors, thermocouples, thermometers and additional temperature sensing equipment. A dry block or dry-well design features a heated block, which contains a temperature-controlling sensor. Transcat offers a full scope of dry-well and dry block calibrators with wide temperature capabilities for onsite industrial, shop, and field applications. Our selection provides optimal portability and performance. We offer dual-zone control models that reduce temperature differences throughout the test zone, thereby increasing calibration accuracy. See the best-in-class designs of Fluke handheld and lab-grade metrology wells, Ametek-Jofra compact temperature calibrators, and Techne rugged dry blocks – all at Transcat.