* Accuracy: Our sense of touch is unreliable for determining accurate temperature. What feels "warm" to one person might feel "cold" to another. A thermometer provides an objective, numerical measurement that is consistent regardless of the individual.

* Sensitivity: Our skin is not very sensitive to subtle changes in temperature. A thermometer can detect even small variations, making it useful for monitoring fevers, checking food safety, and more.

* Safety: Some things are too hot or too cold to safely touch with your bare hands. A thermometer allows you to measure the temperature of these objects without risk of burns or frostbite.

* Objectivity: Our sense of touch can be influenced by factors like the environment, our mood, and even our clothing. A thermometer is a more objective tool, giving a consistent reading regardless of these factors.

In summary, thermometers are much more accurate, sensitive, safe, and objective than our sense of touch when it comes to determining temperature.