The JOFRA CTC 1200A dry-block calibrator ensures accurate, high-temperature calibrations despite power supply instability because it is equipped with mains power variance immunity (MVI)-a proprietary circuitry design developed to continuously monitor supply voltages and ensure a constant and stable energy flow to the dry block’s heating elements. The calibrator offers an immersion depth of 110 millimeters for calibrating sensors up to a diameter of 12 millimeters. The calibrator can be used in high-temperature applications, such as thermocouples, thermoswitches, thermistors and other common temperature-sensing devices. It has a calibrated temperature range of 300 to 1,205 C and offers an accuracy of ±2 C.