AIOMEST Precise CFM Meter Handheld HVAC Anemometer - 0.001~100mph Wind Speed Meter Wind Velocity Airflow Tester Gauge with Backlight Display AI-846A Suitcase Included

The Precise CFM Meter Handheld HVAC Anemometer is a device designed to measure air velocity, airflow, and wind speed for various applications. The device comes with a backlight display and a suitcase for ease of use and handling during transportation. From the reviews, it can be concluded that the device has varying levels of success for different applications. Some customers found it useful in checking and equalizing central air and heat vents, while others used it to measure airflows for dust collectors, ion wind, and HVAC systems. However, there were complaints about the product's quality, including the device's battery cover being difficult to open, noisy fans seizing up after a short period of use, and not being able to measure airflow at low rates effectively. Additionally, the instructions were unclear, and the device itself was made from cheap plastic. Overall, the Precise CFM Meter Handheld HVAC Anemometer seems to have mixed reviews. Some customers found it accurate and useful, while others experienced issues with the product's quality and usability.