# BAFX Products Advanced Decibel Meter / Sound Level Reader vs Tenma 72-947 Digital Sound Level Meter with USB Interface and Datalogging: specs and price compared

A sourced, side-by-side comparison of the BAFX Products Advanced Decibel Meter / Sound Level Reader (BAFX Products) and Tenma 72-947 Digital Sound Level Meter with USB Interface and Datalogging (Tenma) 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 | Tenma 72-947 Digital Sound Level Meter with USB Interface and Datalogging |
| --- | --- | --- |
| US price | $54.99 | $231.92 |
| Brand | BAFX Products | Tenma |
| Measurement range (dB) | 30-130 dBA, 35-130 dBC | 30 to 130 dB |
| Accuracy (dB) | ±1.5 dB | ±1.4 dB |
| Frequency weighting | A, C | A, C |
| Time weighting | Fast (125ms) / Slow (1s) | Fast (125ms) / Slow (1s) |
| Resolution (dB) | — | 0.1 |
| Data logging | Stores up to 4,700 data points via USB with included Soundlab software (Windows only) | Internal datalogging up to 20,000 records; USB interface with Windows datalogging software |
| Microphone type | Electret condenser | 1/2 in. electret condenser |

## Key differences

- Measurement range (dB): BAFX Products Advanced Decibel Meter / Sound Level Reader 30-130 dBA, 35-130 dBC vs Tenma 72-947 Digital Sound Level Meter with USB Interface and Datalogging 30 to 130 dB
- Accuracy (dB): BAFX Products Advanced Decibel Meter / Sound Level Reader ±1.5 dB vs Tenma 72-947 Digital Sound Level Meter with USB Interface and Datalogging ±1.4 dB
- 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 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
- Microphone type: BAFX Products Advanced Decibel Meter / Sound Level Reader Electret condenser vs Tenma 72-947 Digital Sound Level Meter with USB Interface and Datalogging 1/2 in. electret condenser

## 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)
- Tenma 72-947 Digital Sound Level Meter with USB Interface and Datalogging: https://www.farnell.com/datasheets/2616992.pdf (farnell.com, verified 2026-08-09)

Canonical: https://frontdeskreview.com/gear/sound-level-meters/bafx-products-advanced-decibel-meter-vs-tenma-72-947/
Cite: Per The Front Desk Review, BAFX Products Advanced Decibel Meter / Sound Level Reader ($54.99) vs Tenma 72-947 Digital Sound Level Meter with USB Interface and Datalogging ($231.92) — sourced spec-by-spec comparison at https://frontdeskreview.com/gear/sound-level-meters/bafx-products-advanced-decibel-meter-vs-tenma-72-947/
License: CC BY 4.0.