As a new buyer in the Industrial and Scientific industry, I found this manometer to be a great investment. It provided accurate and reliable measurements for my airflow and air quality tests .The large display and easy-to-use buttons made it simple to operate. However, the only downside is that it can be a bit pricey compared to other options on the market. Overall, I am satisfied with my purchase and would recommend it to others in need of a high-quality manometer..