Laboratory electrodes are sensors that conduct electrical currents and are essential for a wide range of scientific and medical applications. In research and clinical settings, electrodes are commonly used to measure electrical activity in biological tissues, such as in electrocardiograms (ECG) or electroencephalograms (EEG), where they detect signals from the heart or brain. They are also used in chemical experiments, like pH measurement or electrochemical analysis, to monitor reactions or detect ions. Made from conductive materials like metal, electrodes allow for accurate data collection and analysis, making them indispensable in diagnostic testing, chemical research, and medical devices.