Can temperatures be measured through water or glass using an infrared thermometer? Water, being transparent and colorless, might initially seem to have high transmittance and make temperature measurement impossible. However, in reality, water has a high emissivity of 0.98, making it possible to measure surface temperatures using a typical infrared thermometer. Reference： What is Emissivity? ）… Continue reading AD-5635 Measuring Temperature of Water and Glass through Infrared Thermometers