SPL Sound Pressure Level Meter w/ 1/2-in Electret condenser microphone +/- 1.5 dB AC Signal Output

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 meets 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 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/MIN Function Level Range Display AC Signal Output Resolution 0.1 dB IEC 651 Type II, ANSI S1.4 Type II Microphone: 1/2-in Electret condenser microphone Accuracy: +/-1.5 dB ref 94dB 1KHz Level Range: Lo = 32 80 dB Med = 50 100 dB Hi = 80 130 dB Auxiliary Outputs: AC Signal Output Frequency Weighting: A , C Time Weighting: Fast , Slow Dynamic Range: 50 dB Frequency Range: 31.5Hz to 8KHz Battery Life: 9V Battery 110 hours included Operation Temp.: 0 Degrees C 40 Degrees C 32 to 104 Degrees F <80% R.H. Storage Temp.: -10 Degrees C 60 Degrees C14 to 140 Degrees F <70% R.H. Dimension: 9.1-in 2.1-in 1.3-in 232mm54mm34mm Weight: Approx. 0.54lbs. 200g