Check the listing for details. Abbeon Relative Humidity & Temperature Indicator Vintage West Germany. Condition: Used, Made in Germany. Listed at 50.00 USD. This Abbeon Relative Humidity & Temperature Indicator is a vintage item from West Germany and is a must-have for collectors of scientific instruments. The device is made with precision and features a sleek design that will make a great addition to any collection. The indicator was manufactured in Germany, adding to its unique and authentic appeal. The item is perfect for those interested in the history of science and medicine and is a great conversation starter. Its accurate readings and reliable performance make it a valuable tool for those interested in meteorology and climatology. This Abbeon Relative Humidity & Temperature Indicator is a rare find and a great investment for collectors and enthusiasts alike.