Today, there is a need to know just how loud your surroundings really are. The CHECK MATES decibel meters are inexpensive tools 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 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 0.1dB
- IEC 651 Type II, ANSI S1.4 Type II
CM-140 SPECIFICATIONS
| Standard |
IEC 651 Type 2, ANSI S1.4 Type 2 |
| Microphone |
1/2" Electret Condenser |
| Accuracy (under reference conditions 94dB @1kHz) |
±1.5dB |
| Level Range |
Lo: 32 - 80dB
Med: 50 - 100dB
Hi: 80 - 130dB |
| Frequency Range |
31.5Hz to 8kHz |
| Frequency Weighting |
A/C |
| Time Weighting |
Fast, Slow |
| Auxiliary Outputs |
AC Signal Output, 1 Vrms at FS (Full Scale)
(FS: Means the upper limit of each level range.) |
| Dynamic Range |
50dB |
| Display |
Liquid Crystal Display |
| Digital Display |
Digits: 4
Resolution: 0.1dB
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 70 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 (without batteries) |
7.06 oz (200 g) |
