Product Description

Today, there is a need to know just how loud your surroundings really are. The Checkmates are inexpensive tools everybody should own. The CM140 and CM150 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 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.

Features

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

Technical Description

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 70 hours (included)

Operation Temp.: 0°C~ 40°C(<80% R.H.)

Storage Temp.: -10°C~ 60°C(<70% R.H.)

Dimension: 9.1 x 2.1 x 1.3 in. (232mm x 54mm x 34mm)

Weight: Approx. 0.54lbs. (200g)

Included Accessories: Operation Manual, 9V Battery, Windscreen

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