240-8198, Tektronix, Tektronix MSO24 MSO2 Series, 500MHz Bench, Portable, Ultra Compact Oscilloscope, 4 Analogue Channels, 16 Digital Tektronix MSO24 MSO2 Series, 500MHz Bench, Portable, Ultra Compact Oscilloscope, 4 Analogue Channels, 16 Digital