The Extech AN340-NIST is an advanced anemometer designed to accurately measure air velocity, air flow, ambient temperature, and humidity in a wide range of applications. This handheld instrument combines precision, versatility, and user-friendly features, making it an essential tool for professionals in HVAC, environmental monitoring, and various other industries.Equipped with a precision vane sensor, the Extech AN340 allows users to obtain accurate air velocity measurements in multiple units, including feet per minute (FPM), meters per second (m/s), kilometers per hour (km/h), miles per hour (mph), and knots. This versatility ensures that professionals can choose the unit of measurement that best suits their specific needs and preferences.In addition to air velocity, the Extech AN340 also measures air volume (CFM/CMM), air temperature, and relative humidity. This combination of measurements enables users to assess air flow rates, evaluate overall system performance, monitor environmental conditions, and identify potential areas of concern. The instrument features a clear LCD display that provides real-time readings of air velocity, air flow, temperature, and humidity for easy and convenient data interpretation.The Extech AN340 offers advanced features to enhance functionality and versatility. It may include a built-in data logging function that allows users to capture and store measurements over time, enabling comprehensive data analysis and reporting. The instrument may also feature a MIN/MAX function to record the highest and lowest readings during a measurement session.The user interface of the Extech AN340 is designed to be intuitive and user-friendly. It features dedicated function buttons and a straightforward menu system, allowing users to switch between measurement modes, access additional features, and configure settings with ease. The instrument may also incorporate a backlit display for enhanced visibility in various lighting conditions.The Extech AN340 is designed to be portable and durable, with a compact and rugged construction that withstands challenging work environments. It is powered by batteries, providing flexibility and allowing for on-the-go measurements in different locations. The instrument may also come with additional accessories such as a protective carrying case or a tripod mount for added convenience. It includes NIST Certification.