Two Datastick Vibration Spectrum Analyzers, the VSA-1227 and VSA-1247, are the first ruggedized PDA-based instruments for vibration analysis using Fast Fourier Transform (FFT) displays for ICP accelerometers, announced Datastick Systems. The announcement was made at ISA Expo 2004 in Houston by Michael Scandling, Datastick VP Marketing, who also announced new Datastick Spectrum software for spectrum analysis with Fast Fourier Transform (FFT) displays.