EMS-9 Portable Model Specifications Operation system: MS WINDOWS XP Transducer frequency: 2MHz PW, 4MHz CW, 8MHz CW Adjustable gain: 1-40dB Transmit power: 0-700% adjustable Frequency spectrum: 256 dots, 512 dots FFT PW Measurement depth: 5mm-136mm PW sampling volume: 4mm, 6mm, 8mm, 10mm, 14mm, 20mm PW Max. Measurement velocity (multi-depth, multi-channel): 448cm/s Frequency scan speed: 3.5s, 7s, 10.5s, 14s