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Today, there is a need to know just how loud your surroundings really are. CHECK MATE SPL Meters are inexpensive tools everybody should own. Windscreen and battery are included with the Galaxy Audio CHECK MATE CM-130 SPL Audio DB Meter.  

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...

• Mini Size 
• Low Cost High Performance 
• MAX Function 
• Level Range Display 
• Resolution 0.5dB

CM-130 SPECIFICATIONS Microphone 1/2" Electret Condenser Accuracy (under reference conditions 94dB @1kHz) ±2dB Level Range: 1: 40 - 70dB
2: 60 - 90dB
3: 80 - 110dB
4: 100 - 130dB Frequency Range 125Hz to 8kHz Frequency Weighting A/C Time Weighting Fast, Slow Dynamic Range 30dB Display Liquid Crystal Display Digital Display Digits: 4
Resolution: 0.5dB
Update: 0.5 sec. Alarm Function Over, Under Power Supplied By One 9V battery (included), 006P or IEC 6F22 or NEDA 1604 Battery Life Approximately 110 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 9.1" x 2.1" x 1.3" (232 x 54 x 34 mm) (HxWxD) Weight (with batteries) 6 oz (170 g)