Voltcraft-IR-900-30S-Infrared-Thermometer-Voltcraft-IR-900-30S-P-The-Voltcraft-IR-900-30S-infrared-thermometer-is-a-measuring-device-for-non-contact-temperature-measurement-It-determines-the-temperature-based-on-the-emitted-infrared-energy-&-the-emissivity-of-an-object-This-type-of-measurement-is-very-useful-to-measure-objects-that-are-hot-difficult-to-reach-or-moving-The-IR-900-30S-measures-the-surface-temperature-of-an-object-The-temperature-behind-transparent-surfaces-such-as-glass