Probably not. I have a CA ugly Pre II and haven't attempted to take it through metal detectors, but the thing is mostly plastic. I would send the 9V battery in the tray though because it's more likely to set the detector off.
Mics: Nak CM-300s, Nak CM-100s, CP-1s, CP-2s, AT-853s(Cards, Hypers, Omnis) CA-14s(Cards, Omnis)
Pres: CA STC-9200, CA-UBB
Recorders: Tascam DR-70D, DR-2D, Edirol R-09
ISO: 1 Teac ME-120, CP-3 Caps, AT-853 Subcard Caps