Calibrators are tools or devices used to ensure that measuring instruments provide accurate and consistent results. They work by comparing the measurements of an instrument to a known standard, allowing for adjustments to be made if discrepancies are found. This process is essential in various fields, including science, engineering, and manufacturing, where precise measurements are crucial. There are different types of calibrators, such as temperature calibrators, pressure calibrators, and voltage calibrators, each designed for specific applications. Regular calibration helps maintain the reliability of instruments, ensuring that they perform correctly over time and meet industry standards.