Vibration Research Corporation 4 Channel ObserVR1000 Software Bundle. Includes 4 Analog Input channels (1 BNC + 1 Triaxial), 2 Tachometers, 1 Discrete Input, 1 Discrete Output, VR1600 Recorder, VR1610 VFW Editor, VR1666 Analyzer (FFT, Live PSD), and VR1304 Transient Capture (ESD)...