The Triplett Model MS475 Moisture/Psychrometer/IR Thermometer is a powerful and versatile instrument for measuring and diagnosing dampness in buildings and building materials. This product enables building inspectors and other remediation technicians to measure moisture levels of building elements such as walls, floors, and building environments simply by switching between the two different modes of operation .In this way, a detailed understanding of the building's condition can be obtained. It can quickly indicate moisture content with pin and pinless moisture measurement. The built-in Humidity/Temperature probe measures Relative Humidity, Air Temperature, Mixing Ratio, Vapor Pressure, and Dew Point. An Infrared Thermometer with laser pointer has an 8:1 distance to target ratio and 0.95 fixed emissivity for measuring most surfaces. Measurements are displayed on a large, backlit easy-to-read dual LCD. Additional features include: High/Low Humidity and Moisture alarms, Min/Max, Data Hold, auto power off, and a low battery indicator.