Description
These days, there is a growing need to know just how loud your audio surroundings really are – and to find out, the Checkmate Sound Pressure Level Meter is a cost-effective and high quality tool every audio professional can own. The CM-150 meet the same IEC 651 Type 2 standards of SPL meters that cost four or five times as much. The kit includes the meter, a windscreen, a battery. a 3.5mm jack plug, a calibration screwdriver and a comprehensive user guide.
The CHECK MATE SPL (Sound Pressure Level) meter, first introduced in early 2003, allows musicians, sound contractors, concert promoters and others to measure SPL in decibels (dB). A decibel is defined as the unit for measuring relative loudness of a sound. Many thousands of these units are in use by working musicians, sound contractors, DJ’s, police departments, racetracks, airports, etc…
Included with each CM-150 is a carrying case, a calibration screwdriver, operation manual, a 9V battery, and a windscreen.
FEATURES
- Back light
- RS-232 interface
- Graph Indication
- MAX/MIN function
- Auto ranging (30 ~ 130dB)
- Level range display
- AC/DC signal output
- Resolution: 0.1 dB
- Auto power off
- IEC 651 Type II, ANSI S1.4 Type II
SPECIFICATIONS:
Microphone: ½” Electret condenser microphone
Accuracy: ±1.5 dB (ref 94dB @1kHz)
Level Range:
Lo = 30 ~ 80 dB
Med = 50 ~ 100 dB
Hi = 80 ~ 130 dB
Auto = 30 ~ 130 dB
Auxiliary Outputs: AC signal output
Frequency Weighting: A and C
Time Weighting: fast (125mS) , slow (1 sec.)
Dynamic Range: 50 dB
Frequency Range: 31.5Hz to 8kHz
Alarm Function: Over, Under
Battery: 9V, approx 50 hours life (included)
Storage Temp.: -10°C~ 60°C (<70% R.H.)
Dimensions: 275×64×30mm (10.8″ ×2.5″ ×1.2″)
Weight (including battery): approx. 285 grammes (0.764lbs)