Lufft replacement writing strips for dual thermographs

Replacement chart strips are available for dual thermographs from G. Lufft Mess- und Regeltechnik GmbH. These chart strips are compatible with the following device models: 8142, 8144. The following chart strips are available for the Lufft dual thermographs: TT 837, TT728, TT 827, TT 743, TT 734, and TT 733.
You can find the respective device number on the base plate of your Lufft device. The diagram number can be found at the bottom right of the recording paper.