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David Tulloh edited this page Jul 3, 2015 · 1 revision
Raw Measured deg C Measured deg K
6384 -40.0 233.15
6625 -31.1 242.05
7903 16.2 256.95
15766 307.1 580.25
16384 330.0 603.15

http://www.eevblog.com/forum/testgear/yet-another-cheap-thermal-imager-incoming/msg564516/#msg564516

From the Android code we know that raw values are converted first to Kelvins.

A linear equation fits these samples reasonably well, the zero crossing version is probably more correct.
kelvin(x) = 0.0363691 * x
kelvin(x) = -18.763 + 0.0378683*x Kelvin

graph of linear equation fits