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Galaxy Audio CM-140 CHECK MATE - Battery Operated SPL Meter

B&H # GACM140 Mfr # CM-140
In Stock
Free Expedited Shipping
You Pay: $129.99

The Galaxy Audio CM-140 CHECK MATE is a lightweight, 9V battery-operated SPL meter with a built-in electret condenser microphone and a large, backlit display featuring low, medium and high level range readouts. This high-tech but inexpensive meter offers selectable fast and slow response times, AC signal output, and large, easily accessible selector buttons.

Lightweight, miniature SPL meter with 0.1 dB resolution
Built-in electret condenser microphone with windscreen
Large backlit level range display with low, medium and high level readouts
Standard 9V battery operation with 50 hr. battery life
AC signal output
Frequency Response 31.5 Hz - 8 kHz
Accuracy +/-1.5 dB (ref 94dB @1KHz)
Standard Not Specified by Manufacturer
Weighting Time: Fast, Slow
Frequency: A, C
Response Lo: 35 - 80dB
Med: 50 -100 dB
Hi: 80 - 130 dB
Signal Output AC
Battery Check Yes
Battery Life 50 hrs.
Dimensions 9.1 x 2.1 x 1.3" (232 x 54 x 34mm)
Weight 7.05 oz (200 g)
Galaxy Audio CM-140 CHECK MATE - Battery Operated SPL Meter
  • 9V Battery
  • Windscreen
  • Owner's Manual
  • 1 Year Warranty

    by PowerReviews
    Galaxy AudioCM-140 CHECK MATE - SPL Meter

    (based on 2 reviews)

    Ratings Distribution

    • 5 Stars



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    • 1 Stars



    Reviewed by 2 customers

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    By Cloclo

    from Longueuil,Qc.,Canada

    Verified Buyer


    • Accurate
    • Versatile
    • Well built


    • No Bag

    Best Uses

    • General use
    • Home Studio
    • Home theater
    • Semi-Pro

    Comments about Galaxy Audio CM-140 CHECK MATE - SPL Meter:

    Mostly home theater and road

    • Was this a gift?:
    • No

    Share this review

    (2 of 3 customers found this review helpful)


    A very good basic SPL meter

    By bobb

    from Berkeley, CA

    About Me Midrange Shopper

    Verified Buyer


    • Attractive Design
    • Comfortable
    • Quality Construction
    • Simple to Use


    • Low frequency sesitivity

    Best Uses

    • Equalize sound system
    • Informal Use
    • Training

    Comments about Galaxy Audio CM-140 CHECK MATE - SPL Meter:

    I used this product to equalize the SPL for my Home Theater surround system. It has a wide sensitivity range from 32db at the low end to 130db at the loud end. At very low frequencies of the audio spectrum (40 - 50 Hz) it did not appear to the be responsive. Some more documentation about what to expect and how to decide if it was functioning correctly would be appreciated.
    However, calling the support number got a real person who then passed me on to technical support person.

    • Primary use:
    • Personal

    Share this review

    Batteries & Power

    Show more >
    Duracell -  9V Alkaline Battery (Coppertop)
    • You Pay: $1.95
    Watson -  9V Rechargeable NiMH Battery (250mAh)
    • You Pay: $7.95

    Cases & Protection

    Pelican -  1200 Case with Foam (Black)
    • You Pay: $38.95
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