903010 Instruments and apparatus for measuring or detecting ionizing radiations
903020 Cathode-ray oscilloscopes and cathode-ray oscillographs
903031 Multimeters
903039 Other Instruments for Measuring or Checking Voltage, Current or Power
903040 Other instruments and apparatus, specially designed for telecommunications (for example, cross-talk meters, gain measuring instruments, distortion factor meters, psophometers)
903081 With a recording device(Volt Meters, Am Meters, Circuit Testers)
903089 Other: Spectrum Analysers
903090 Parts and accessories (Oscilloscopes, Volt Meters, Am Meters, Cross Talk Meters)
