Check the listing for details. Vaisala VL-4000-20C Analog Logger. Condition: Used. Listed at 179.00 USD. This Vaisala VL-4000-20C Analog Logger is a high-quality unit that is ideal for data acquisition and logging. With its advanced features and high-precision measurements, this unit is perfect for various industries, including business and industrial settings. The unit is manufactured in Finland and is equipped with various functions that make it a reliable and efficient choice for data logging. The Vaisala VL-4000-20C Analog Logger is designed to provide accurate and consistent results, making it an excellent unit for professionals who need to measure and log data with precision. The unit is easy to use and features a user-friendly interface that makes it simple to operate and navigate. This data logger is perfect for those who need to log and analyze data in various settings, including research, development, and quality assurance. DL-VL-4000-20C-114-LP, 2 4-20mA & vNet