The BEL GX65 was a clone of the best-selling Escort Passport 9500ix. (Beltronics is an Escort division and they share platforms.) The two were nearly identical in features and performance—with one exception—AutoLearn.
AutoLearn locks out nuisance signals automatically. If a signal is encountered three times under identical circumstances, it's assumed to be caused by a roadside source, probably an automatic door opener. The detector automatically locks out the signal and won't alert when next passing it. This value-added feature automates the function and is a deal-breaker for many.