Definition - What does Contact Thermometer mean?
A contact thermometer is a temperature measurement device that operates via direct contact between the magnetic end of the thermometer and the steel material surface of an unknown temperature to be determined.
Corrosionpedia explains Contact Thermometer
A contact thermometer is a sensor-type device used for measurement. Some applications include temperature measurements for industrial processes and fluid temperature measurements. Examples of contact thermometers are thermocouples, resistance temperature detectors (RTD) and thermistors.
It is vital to select the proper type of sensor-contact thermometer for the right application. Other factors such as cost, accuracy, size and ease of use should also be considered.