Home › Dataset › Sources and method

Sources and method: how this dataset was built

Every number on this site comes from a manufacturer page, and every figure keeps the condition it was published with. This page documents how the transcription was done, what it does not cover, and how to check it — so you can decide how far to trust it.

The method, in order

Source. The manufacturer's published model page for each model, fetched 2026-10-23.
Extraction. Specification tables are read row by row. Labels are normalised (the same attribute appears as Measuring range, Measurement range, Maximum range, Ranging distance and Maximum measurement distance across the catalogue), then values are parsed with their units.
Range is not taken from the first number on the page. Resolution, minimum range and blind range are explicitly excluded; visibility figures, target dimensions and reflectance percentages inside the same cell are excluded too. A range figure is only accepted when the number is a distance in metres or kilometres that is not part of a condition.
Units normalised. Wavelength in µm is converted to nm, accuracy in cm to m, mass in kg to g, all with the original string kept alongside (accuracy_raw, rate_raw).
Conditions kept verbatim. range_condition is the manufacturer's own sentence, not a summary. Where a model publishes several conditions, the one behind the maximum figure is kept and the alternatives are listed.
No extrapolation. If a model does not publish mass or an interface, the dataset has an empty field. It is never inferred from a neighbouring model.

What the dataset does not do

It does not normalise range. A 23 km row and a 12 km row are only comparable through their conditions, which is why the condition ships in the same row.
It does not resolve proportional accuracy into a single number. Where the manufacturer gives ±0.3 m + D × 0.7 ‰, the scalar field carries the near-field term and the raw string carries the formula.
It does not classify your product. The laser_class field reproduces the module's own statement. The classification of an assembled product requires its own assessment.
It does not include prices. Commercial terms are quoted per configuration.

How to check us

Every model page carries a link to the manufacturer page it was transcribed from, and the dataset row carries the same URL in the url field. Pick three rows, open the sources, compare. If a row is wrong, tell us and it gets corrected — an errata is cheaper than a design review built on a bad number.

Licence and citation

The dataset is released under CC BY 4.0. Cite as:

ERDI LRF model dataset, 2026-10-23. https://specs.erdilrf.com/data/ · manufacturer figures via erdilrf.com

Found an error? Send the model and what the source says. Email tommy@erdimail.com Download the JSON

Transcription 2026-10-23. This page exists because a dataset without a method is just a table of claims.