👉 A thalassometer, also known as a thermometer or thermocouple, is an instrument used to measure the temperature of a substance. It consists of a heat source (usually a thermometer) and a thermocouple that connects it to a sensitive sensor such as a thermistor or thermocoupler. The thermocouple detects changes in temperature and converts them into electrical signals that can be sent to a computer or other device, where they are analyzed for various purposes.