A calibrated thermometer is a device used to measure temperature accurately. It is designed to provide precise readings by ensuring that the scale is correctly aligned with known temperature standards. Calibration involves comparing the thermometer's readings to a reference thermometer, which is already known to be accurate. Regular calibration is essential for maintaining the reliability of the thermometer. This process can be performed using various methods, including the use of ice water or boiling water, to check the thermometer's accuracy at specific points. Properly calibrated thermometers are crucial in fields like medicine, food safety, and laboratory research.