Which type of thermometer is capable of measuring temperature from a distance?

The infrared thermometer is specifically designed to measure temperature from a distance by detecting infrared radiation emitted by an object. This capability allows it to measure temperature without needing to make direct contact with the item being measured. This is particularly useful in situations where objects are moving, extremely hot, or difficult to reach.

Infrared thermometers work by collecting the infrared radiation and converting it into a readable temperature value, making them a practical choice for various HVAC applications, such as checking the temperature of ducts, motors, and other components in systems where human contact might be unsafe or impractical.

Other types of thermometers, such as digital thermometers, thermocouples, and bimetallic thermometers, require direct contact with the surface to provide accurate readings and do not have the capability to measure temperature from a distance.