This Graphtec B-564 Standard Extension Terminal Base is a high-quality product that is perfect for use with GL840 data loggers. Made in Japan, this base is designed to provide reliable and accurate measurements for a variety of business and industrial applications. With its sleek design and durable construction, the Graphtec B-564 is an excellent choice for anyone who needs a reliable data acquisition system. Whether you're measuring temperature, pressure, or other key variables, this system is sure to provide the accurate and precise measurements you need. So why wait? Order your Graphtec B-564 Standard Extension Terminal Base today and start enjoying the benefits of high-quality data acquisition!