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  1. GenRad 1986 Omnical Sound Level Calibrator -Refurbished
    • Capable of testing all the basic characteristics of virtually any acoustic instrument or system
    • Multi-level outputs 74, 84, 94, 104, or 114 dB re 20µPa output
    • Multi-frequency outputs 125, 250, 500, 1000, 2000 or 4000 Hz
    • Portable battery-operated
  2. GenRad 1562-A Sound Level Calibrator
    • Workhorse of the acoustics field
    • Calibrates most sound-level meters
    • Generates standard levels and frequencies
    • Adaptable to various microphone sizes
    • Use in the lab or in the field

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