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Signal Processing
Galaxy Audio CM-80 Check Mate SPL Meters

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Galaxy Audio CM-80 Check Mate SPL Meters


Today, there is a need to know just how loud your surroundings really are. The CM-80 is an affordable IEC 651 TYPE 2 & ANSI S1.4 TYPE 2 SPL meter. The CHECK MATES are inexpensive tools that everybody working in loud environments should own. Windscreen and protective case are included with the CHECK MATE models. 

The CHECK MATE series SPL (Sound Pressure Level) meters, first introduced in early 2003, allow musicians, sound contractors, and others to measure SPL in decibels (dB). A decibel is defined as the unit for measuring relative loudness of a sound. We have expanded our line from one CHECK MATE SPL Meter to four products in the category. We have sold thousands of units to working musicians, DJs, police departments, sound contractors, racetracks, etc...

The CM-80 is the latest in the line of Galaxy Audio SPL Meters. The CM-80 measures sound presure levels in real time, has a MAX/MIN hold function, power save, and has an automatic light detection that will turn the blacklight on when environmental light is inadequate. The CM-80 comes with a windscreen.



  • Mini Size
  • Low Cost
  • MAX/MIN Hold Function
  • Automatic Backlight Display
  • Level Range Display
  • Resolution 0.1 dB
  • Low Battery Indication
  • Auto Power Off

Technical Specifications

Standard IEC 651 Type 2 & ANSI S1.4 Type 2
Microphone 1/2" Electret Condenser
Accuracy (under reference conditions 94dB @1kHz) ±1.5dB
Level Range: 30dBA - 130dBA
Frequency Range 31.5Hz - 8kHz
Frequency Weighting A
Display Liquid Crystal Display
Digital Display Digital: 4 Digits
Resolution: 0.1dB
Update: 0.5 sec.
Auto Power Off About 11 Minutes
Power Supplied By 9V Battery (included)
Battery Life Approximately 30 Hours (Alkaline)
Operation Temp. 0°C to 40°C (32°F to 104°F) (<80% R.H.)
Storage Temp. -10°C to 60°C (14°F to 140°F) (<70% R.H.)
Dimensions 5.87" x 2.24" x 1" 
(149 x 57 x 26 mm) (HxWxD)
Weight (with batteries) 5.08 oz (144 g)

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