[Ziggurat29] had been playing around with infrared protocols, and realized he had a spare point-of-sale printer kicking around in his junk box. So he decided to whip up his own calculator infrared ...

Accurate wavelengths of the ∼500 lines recorded are given in a table. This material is intended for wavelength calibration of near‐infrared spectra and is especially critical for high‐resolution work.