# PCE Instruments PCE-322A Data Logging Sound Level Meter 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 PCE Instruments PCE-322A Data Logging Sound Level Meter (PCE Instruments) and Tenma 72-947 Digital Sound Level Meter with USB Interface and Datalogging (Tenma) among sound level meters. Tenma 72-947 Digital Sound Level Meter with USB Interface and Datalogging is the cheaper of the two at $231.92.

## Side by side

| Spec | PCE Instruments PCE-322A Data Logging Sound Level Meter | Tenma 72-947 Digital Sound Level Meter with USB Interface and Datalogging |
| --- | --- | --- |
| US price | $265.5 | $231.92 |
| Brand | PCE Instruments | Tenma |
| Measurement range (dB) | 30 to 130 dB | 30 to 130 dB |
| Accuracy (dB) | ±1.4 dB | ±1.4 dB |
| Frequency weighting | A, C | A, C |
| Time weighting | Fast (125ms) / Slow (1s) | Fast (125ms) / Slow (1s) |
| Resolution (dB) | 0.1 | 0.1 |
| Data logging | Stores up to 32,700 readings, sampling 2x/sec, USB transfer to PC/Excel | Internal datalogging up to 20,000 records; USB interface with Windows datalogging software |
| Microphone type | Electret condenser | 1/2 in. electret condenser |

## Key differences

- Data logging: PCE Instruments PCE-322A Data Logging Sound Level Meter Stores up to 32,700 readings, sampling 2x/sec, USB transfer to PC/Excel 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: PCE Instruments PCE-322A Data Logging Sound Level Meter Electret condenser vs Tenma 72-947 Digital Sound Level Meter with USB Interface and Datalogging 1/2 in. electret condenser

## Sources

- PCE Instruments PCE-322A Data Logging Sound Level Meter: https://www.digikey.com/en/product-highlight/p/pce-instruments/pce-322a-class-ii-sound-level-meter (digikey.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/pce-instruments-pce-322a-vs-tenma-72-947/
Cite: Per The Front Desk Review, PCE Instruments PCE-322A Data Logging Sound Level Meter ($265.5) 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/pce-instruments-pce-322a-vs-tenma-72-947/
License: CC BY 4.0.