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Galaxy Audio CM-140 CheckMate SPL Meter (Sound Level Meter)

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The Galaxy Audio CM-140 is a step up from the CM-130. The CM-140 is the least expensive decibel meter (sound level meter) in the Galaxy line whose results are, in most jurisdictions, admissable in court. The CM-140 meets the same IEC 651 Type 2 standards of SPL meters that cost 5 times as much or more. Windscreen and battery are included with each of the CHECK MATE models. Works on 9 volt batteries and weighs in at half a pound. Note: the Galaxy Audio CM-100 is now the CM-140.

Sound Pressure Levels - How much is too much? - Be sure to check out this handy list of dB readings for common sounds...
  • IEC 651 Type II sound pressure level meter with MAX/MIN function
  • Level Range Display
  • AC Signal Output
  • Resolution of 0.1 dB
  • Electret condenser microphone, an accuracy of -+1.5 dB (ref 94dB @1KHz)
  • Selectable Level Ranges of Lo = 35 ~ 80 dB, Med = 50 ~ 100 dB, & Hi = 80 ~ 130 dB
  • Frequency Weightings A & C
  • Time Weightings Fast & Slow
  • Auxiliary AC Signal Output with a Dynamic Range of 50 Db.
  • CM140 will operate for up to 50 hours on an alkaline 9V Battery
  • Windscreen included
  • Battery included