Based on the cited NCEES whitelist quote, the relevant evidence is the named calculator family or model. The Casio fx-115ES Plus is matched to the Casio fx-115 family using the stored calculator model data. This evidence note does not treat every scientific calculator as allowed; it only explains why this exact printed model name fits the whitelist language currently recorded for the FE exam.
“Only the calculators listed below may be used during the FE exam: Casio fx-115 and fx-991 models, Hewlett Packard HP 33s and HP 35s, Texas Instruments TI-30X and TI-36X models.”