Device description: Analog Storage Oscilloscope, two 50Ω channels, two 1MΩ channels, frequency bandwidth 600MHz, waveform capture function, built-in thermal printer, image saving in BMP/JPEG format on ATA flash card, maximum resolution 500ps/div.
Specification: https://www.iti.iwatsu.co.jp/en/products/ss/ts81000/ts_spec_e.html