| Comparative Point | Thermistor | Thermocouple |
| Material used | Metallic oxides of Cu, Ni, Fe. | Metals like copper, iron, platinum, rhodium or alloys like constantan. |
| Output reading | Actual temperature of object. | Temperature difference between temperature of cold junction and hot junction. |
| Operating or Temperature range | Narrow operating range from – 150°C to 300°C. | Wide operating range from -200° to 1600°C. |
| Construction | Complex. | Simple, but rigid. |
| Size | Very small. | Comparatively much larger. |
| Cost | Expensive. | Cheaper. |
| Effect of environmental conditions | No effect on accuracy. | Accuracy gets affected. |
| Sensitivity | Extremely sensitive. It rapidly measures temperature of object, because temperature change is directly proportional to change in resistance of sensing element. | Considered to be less sensitive, because of very small emf output. |
| Response | Better response. | Comparatively slow response. |
| Need of insulation | No as insulation covering is not required, during temperature measurement of any conducting fluid. | Yes as insulation covering is required, during temperature measurement of any conducting fluid. |
| Applications | (a) Used for temperature measurement with control. (b) Used for controlling liquid level. | Used for temperature measurement only. |