240-8189, Tektronix, Tektronix MSO22 MSO2 Series, 100MHz Bench, Portable, Ultra Compact Oscilloscope, 2 Analogue Channels, 16 Digital Tektronix MSO22 MSO2 Series, 100MHz Bench, Portable, Ultra Compact Oscilloscope, 2 Analogue Channels, 16 Digital