Today, there is a need to know just how loud your surroundings really are. The CHECK MATE CM-140 SPL decibel meter is an economical tool everybody should own. The Galaxy Audio CM-140 and Galaxy Audio CM-170 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 the Galaxy Audio CM-140 and all other 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...
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)
Check Mate CM-140 SPL sound pressure level meter - meets IEC 651 & ANSI S1.4 Type 2 standard. Specifications
IEC 651 Type 2, ANSI S1.4 Type 2
1/2" Electret Condenser
Accuracy (under reference conditions 94dB @1kHz)
Lo: 32 - 80dB
Med: 50 - 100dB
Hi: 80 - 130dB
31.5Hz to 8kHz
AC Signal Output, 1 Vrms at FS (Full Scale)
(FS: Means the upper limit of each level range.)
Liquid Crystal Display
Update: 0.5 sec.
Power Supplied By
One 9V battery (included), 006P or IEC 6F22 or NEDA 1604