The FL-800 is a type of portable, handheld device used for measuring various environmental parameters, such as temperature, humidity, and air quality. It is designed for both professional and personal use, making it suitable for applications in fields like agriculture, construction, and indoor air quality monitoring. Equipped with advanced sensors, the FL-800 provides real-time data and can often connect to smartphones or computers for data analysis. Its user-friendly interface allows individuals to easily interpret the readings, making it a valuable tool for anyone needing to assess environmental conditions effectively.