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CM-150 SPL Meter

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Today, there is a need to know just how loud your surroundings really are. The CHECK MATES are inexpensive tools everybody should own. The CM-140 and CM-150 meet 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. 

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 the 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…

  • Back light
  • RS-232 Interface 
  • Graph Indication 
  • MAX/MIN Function 
  • Auto Ranging (30 ~ 130dB)
  • Level Range Display 
  • AC/DC Signal Output 
  • Resolution 0.1 dB 
  • Auto Power Off
  • IEC 651 Type II, ANSI S1.4 Type II


Check Mate windscreen fits CM-150 and CM-160


USB Cable for CM-150 & CM-160


Standard tripod connector with single lock pan head. The tripod extends to 5 height positions from 11" to 3' 8". 

Tripod carrying case included.

CM-C200 Sound Pressure Level Meter Calibrator for 1 inch, ½ inch, & ¼ inch diameter mic capsules

Over time, all SPL meters lose their calibration. The Galaxy Audio CM-C200 is a sound pressure level (SPL) meter calibrator. The CM-C200 meets IEC 60942 2003 Class 2 and ANSI S1.40-1984 standards. The CM-C200 can calibrate 1", 1/2", and 1/4" diameter microphone capsules at 94dB and 114dB. 

The CM-C200 will work with any of the CheckMate SPL Meters and many other brands. The CM-C200 has a test tone at 1kHz at both 94dB and 114dB. The CM-C200 includes 2 adaptors a protective zipper pouch and manual.

  • Accurate and simple to use
  • Calibration levels of 94dB and 114dB at 1kHz
  • Fits 1", 1/2", and 1/4" diameter microphones
  • Conforms to IEC 60942 2003 Class 2 and ANSI S1.40-1984 
  • Weight: 0.41lbs (186.4g) (including battery)
Microphone ½" Electret condenser microphone
Accuracy ±1.5 dB (ref 94dB @1KHz)
Level Range: Lo 30 ~ 80 dB
Level Range: Med 50 ~ 100 dB
Level Range: Hi 80 ~ 130 dB
Level Range: Auto 30 ~ 130 dB
Auxiliary Outputs AC Signal Output
Frequency Weighting A , C
Time Weighting Fast (125mS) , Slow (1 sec.)
Dynamic Range 50 dB
Frequency Range 31.5Hz to 8KHz
Alarm Function Over, Under
Battery Life 9V Battery 50 hours (included)
Storage Temp. -10°C~ 60°C(<70% R.H.)
Dimensions 10.8" ×2.5" ×1.2" (275mm×64mm×30mm)
Weight Approx. 0.764lbs. (285g)(including battery)
Manual ( PDF - 6.41 MB )
Cut Sheet ( PDF - 2.24 MB )
Software Version 32 ( ZIP - 3.8 MB )
Driver Download - Mac OSX ( ZIP - 0.38 MB )
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