The CM-140 meets the same IEC 651 Type 2 standards of SPL meters that cost 5 times as much or more.
Today, there is a need to know just how loud your surroundings really are. The CHECK MATES are inexpensive tools everybody should own. 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.
Galaxy Audio CM-140 Features
- Mini size
- Low cost high performance
- MAX/MIN function
- Level range display
- LCD screen and digital display
- AC signal output
- IEC 651 Type II, ANSI S1.4 Type II
- CM-140 Checkmate SPL meter1
- 9V Battery1
- Microphone1/2" electret condenser
- Accuracy+/-1.5dB (under reference conditions 94dB @1kHz)
- Level range32-80dB (lo), 50-100dB (med), 80-130dB (hi)
- Frequency range31.5Hz to 8kHz
- Frequency weightingA/C
- Time weightingfast, slow
- Auxiliary outputsAC signal output, 1 Vrms at full scale
- Dynamic range50dB
- Alarm functionover, under
- Power supplyone 9V battery, 006P or IEC 6F22 or NEDA 1604
- Battery lifeapproximately 70 hours
- Operating temperature32°F to 104°F (0°C to 40°C) at <80% relative humidity
- Storage temperature14°F to 140°F (-10°C to 60°C) at <70% relative humidity
