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Galaxly Audio CM-130 Battery Powered SPL Meter Check Mate
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. Galaxy Audio has expanded their line from one CHECK MATE SPL Meter to four products in the category. They have sold thousands of units to working musicians, DJs, police departments, sound contractors, racetracks, etc...