# BAFX Products Advanced Decibel Meter / Sound Level Reader vs Galaxy Audio CM-140 Check Mate SPL Meter: specs and price compared

A sourced, side-by-side comparison of the BAFX Products Advanced Decibel Meter / Sound Level Reader (BAFX Products) and Galaxy Audio CM-140 Check Mate SPL Meter (Galaxy Audio) among sound level meters. BAFX Products Advanced Decibel Meter / Sound Level Reader is the cheaper of the two at $54.99.

## Side by side

| Spec | BAFX Products Advanced Decibel Meter / Sound Level Reader | Galaxy Audio CM-140 Check Mate SPL Meter |
| --- | --- | --- |
| US price | $54.99 | $179.99 |
| Brand | BAFX Products | Galaxy Audio |
| Measurement range (dB) | 30-130 dBA, 35-130 dBC | Lo 32-80 dB, Med 50-100 dB, Hi 80-130 dB |
| Accuracy (dB) | ±1.5 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 |
| Data logging | Stores up to 4,700 data points via USB with included Soundlab software (Windows only) | No |
| Microphone type | Electret condenser | Electret condenser |

## Key differences

- Measurement range (dB): BAFX Products Advanced Decibel Meter / Sound Level Reader 30-130 dBA, 35-130 dBC vs Galaxy Audio CM-140 Check Mate SPL Meter Lo 32-80 dB, Med 50-100 dB, Hi 80-130 dB
- Frequency weighting: BAFX Products Advanced Decibel Meter / Sound Level Reader A, C vs Galaxy Audio CM-140 Check Mate SPL Meter A (per IEC 651/ANSI S1.4 Type 2)
- Time weighting: BAFX Products Advanced Decibel Meter / Sound Level Reader Fast (125ms) / Slow (1s) vs Galaxy Audio CM-140 Check Mate SPL Meter Fast/Slow
- Data logging: BAFX Products Advanced Decibel Meter / Sound Level Reader Stores up to 4,700 data points via USB with included Soundlab software (Windows only) vs Galaxy Audio CM-140 Check Mate SPL Meter No

## Sources

- BAFX Products Advanced Decibel Meter / Sound Level Reader: https://bafxpro.com/products/bafx-products-decibel-meter-sound-level-reader-w-battery-advanced-sound-meter (bafxpro.com, verified 2026-08-09)
- Galaxy Audio CM-140 Check Mate SPL Meter: https://galaxyaudio.com/products/cm-140/ (galaxyaudio.com, verified 2026-08-09)

Canonical: https://frontdeskreview.com/gear/sound-level-meters/bafx-products-advanced-decibel-meter-vs-galaxy-audio-cm-140/
Cite: Per The Front Desk Review, BAFX Products Advanced Decibel Meter / Sound Level Reader ($54.99) vs Galaxy Audio CM-140 Check Mate SPL Meter ($179.99) — sourced spec-by-spec comparison at https://frontdeskreview.com/gear/sound-level-meters/bafx-products-advanced-decibel-meter-vs-galaxy-audio-cm-140/
License: CC BY 4.0.