This data accompanies the publication "Interferometric single-shot parity measurement in InAs-Al hybrid devices". Documentation and software to reproduce paper figures based on this dataset as well as to reproduce the simulation data are published in a separate GitHub repository. The datasets tgp2_tuneup.zip have been updated after fixing a single-pixel asymmetry in the bias range. No changes are required in the analysis script. The correction has a minor impact on the extracted gap maps, with only 4.6% of pixels exhibiting a change in gapped-gapless status. The main conclusions of the paper remain unchanged.