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Tenma
Tenma 72-947 Digital Sound Level Meter with USB Interface and Datalogging
$231.92
Best Sound Level Meters · head-to-head
Tenma 72-947 Digital Sound Level Meter with USB Interface and Datalogging vs Galaxy Audio CM-140 Check Mate SPL Meter
A sourced, side-by-side comparison. Galaxy Audio CM-140 Check Mate SPL Meter is cheaper at $179.99. Every spec and price links to its source.
Galaxy Audio
Galaxy Audio CM-140 Check Mate SPL Meter
$179.99Cheaper
Which is better: the Tenma 72-947 Digital Sound Level Meter with USB Interface and Datalogging or Galaxy Audio CM-140 Check Mate SPL Meter?
On the specs we track, they're closely matched. The Galaxy Audio CM-140 Check Mate SPL Meter is the cheaper at $179.99.
Check Tenma 72-947 Digital Sound Level Meter with USB Interface and Datalogging price See Galaxy Audio CM-140 Check Mate SPL Meter on Amazon
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Full spec sheet
✓ marks the stronger figure where "more" — or "less", for price and weight — is unambiguously better.
| Spec | Tenma 72-947 Digital Sound Level Meter with USB Interface and Datalogging | Galaxy Audio CM-140 Check Mate SPL Meter |
|---|---|---|
| US price | $231.92 | $179.99 Current Sweetwater retail |
| Brand | Tenma | Galaxy Audio |
| Released | — | — |
| Measurement range (dB) | 30 to 130 dB | Lo 32-80 dB, Med 50-100 dB, Hi 80-130 dB |
| Accuracy (dB) | ±1.4 dB | ±1.5 dB |
| Frequency weighting | A, C | A (per IEC 651/ANSI S1.4 Type 2) |
| Time weighting | Fast (125ms) / Slow (1s) | Fast/Slow |
| Resolution (dB) | 0.1 | 0.1 |
| Data logging | Internal datalogging up to 20,000 records; USB interface with Windows datalogging software | No |
| Microphone type | 1/2 in. electret condenser | Electret condenser |
Sources — Tenma 72-947 Digital Sound Level Meter with USB Interface and Datalogging: farnell.com (verified 2026-08-09). Galaxy Audio CM-140 Check Mate SPL Meter: galaxyaudio.com (verified 2026-08-09).
What's the difference between the Tenma 72-947 Digital Sound Level Meter with USB Interface and Datalogging and Galaxy Audio CM-140 Check Mate SPL Meter?
Where the two actually differ on the specs we track (6 of 7). Matching specs are omitted.
- Measurement range (dB): Tenma 72-947 Digital Sound Level Meter with USB Interface and Datalogging 30 to 130 dB vs Galaxy Audio CM-140 Check Mate SPL Meter Lo 32-80 dB, Med 50-100 dB, Hi 80-130 dB
- Accuracy (dB): Tenma 72-947 Digital Sound Level Meter with USB Interface and Datalogging ±1.4 dB vs Galaxy Audio CM-140 Check Mate SPL Meter ±1.5 dB
- Frequency weighting: Tenma 72-947 Digital Sound Level Meter with USB Interface and Datalogging A, C vs Galaxy Audio CM-140 Check Mate SPL Meter A (per IEC 651/ANSI S1.4 Type 2)
- Time weighting: Tenma 72-947 Digital Sound Level Meter with USB Interface and Datalogging Fast (125ms) / Slow (1s) vs Galaxy Audio CM-140 Check Mate SPL Meter Fast/Slow
- Data logging: Tenma 72-947 Digital Sound Level Meter with USB Interface and Datalogging Internal datalogging up to 20,000 records; USB interface with Windows datalogging software vs Galaxy Audio CM-140 Check Mate SPL Meter false
- Microphone type: Tenma 72-947 Digital Sound Level Meter with USB Interface and Datalogging 1/2 in. electret condenser vs Galaxy Audio CM-140 Check Mate SPL Meter Electret condenser