A laser thermometer cannot accurately measure temperature through glass. It measures the temperature of the glass surface. When pointed at a window, it shows the window pane’s temperature, not the outside temperature. This limitation also applies to other transparent surfaces, affecting infrared (IR) measurement accuracy.
The short answer is no; laser thermometers cannot accurately measure temperature through glass. Glass absorbs and reflects infrared radiation, which alters the temperature reading. As a result, the thermometer may provide an inaccurate measurement. It is important to note that factors like glass thickness and type also impact the results.
When using a laser thermometer, always ensure that the target surface is directly exposed to the device’s line of sight. If you need to measure temperature through glass, consider alternative approaches. For example, remove the glass barrier or use a contact thermometer that can measure temperature by direct contact with the surface.
Understanding the limitations of laser thermometers is essential for effective temperature measurements. In the following section, we will explore common questions about laser thermometers, including their calibration, ideal usage scenarios, and tips for obtaining accurate readings. This will help users maximize the benefits of these versatile instruments.