TC-SF Surface Probe Type Thermocouple Temperature Sensor

 A thermocouple is an electrical device consisting of two different conductors forming electrical junctions at differing temperatures. A thermocouple produces a temperature-dependent voltage as a result of the thermoelectric effect, and this voltage can be interpreted to measure temperature. Thermocouples are a widely used type of temperature sensor. 

Surface probe with spring loaded sensing tip. Suitable for a variety of industrial applications as well as heating  & ventilation.