Replacement chart strips are available for barographs from Adolf Thies GmbH & Co. KG. These chart strips are compatible with the following device models: 3.0800.10.000, 3.0800.10.900, 3.0804.10.000, 3.0804.10.900, 3.0805.10.000, 3.0805.10.900, 3.0810.20.000. The following chart strips are available for Thies barographs: 500847, 205184, 205182, 205185, 205186, 205187, and 205188.
You can find the respective device number on the base plate of your Thies device. The chart number can be found in the bottom right corner of the chart paper.