Extech
Extech 407730 Digital Sound Level Meter
$114
Best Sound Level Meters · head-to-head
Extech 407730 Digital Sound Level Meter vs BAFX Products Advanced Decibel Meter / Sound Level Reader
A sourced, side-by-side comparison. BAFX Products Advanced Decibel Meter / Sound Level Reader is cheaper at $54.99. Every spec and price links to its source.
BAFX Products
BAFX Products Advanced Decibel Meter / Sound Level Reader
$54.99Cheaper
Which is better: the Extech 407730 Digital Sound Level Meter or BAFX Products Advanced Decibel Meter / Sound Level Reader?
On the specs we track, they're closely matched. The BAFX Products Advanced Decibel Meter / Sound Level Reader is the cheaper at $54.99.
See Extech 407730 Digital Sound Level Meter on Amazon Check BAFX Products Advanced Decibel Meter / Sound Level Reader price
As an Amazon Associate we earn from qualifying purchases. Prices verified at capture; live price may differ.
Full spec sheet
✓ marks the stronger figure where "more" — or "less", for price and weight — is unambiguously better.
| Spec |  Extech 407730 Digital Sound Level Meter |  BAFX Products Advanced Decibel Meter / Sound Level Reader |
|---|---|---|
| US price | $114 | $54.99 |
| Brand | Extech | BAFX Products |
| Released | — | — |
| Measurement range (dB) | 40 to 130 dB | 30-130 dBA, 35-130 dBC |
| Accuracy (dB) | ±2 dB | ±1.5 dB |
| Frequency weighting | A, C | A, C |
| Time weighting | Fast/Slow | Fast (125ms) / Slow (1s) |
| Resolution (dB) | 0.1 | — |
| Data logging | No | Stores up to 4,700 data points via USB with included Soundlab software (Windows only) |
| Microphone type | 0.5 in. (12.7mm) electret condenser | Electret condenser |
Sources — Extech 407730 Digital Sound Level Meter: extech.com (verified 2026-08-09). BAFX Products Advanced Decibel Meter / Sound Level Reader: bafxpro.com (verified 2026-08-09).
What's the difference between the Extech 407730 Digital Sound Level Meter and BAFX Products Advanced Decibel Meter / Sound Level Reader?
Where the two actually differ on the specs we track (5 of 7). Matching specs are omitted.
- Measurement range (dB): Extech 407730 Digital Sound Level Meter 40 to 130 dB vs BAFX Products Advanced Decibel Meter / Sound Level Reader 30-130 dBA, 35-130 dBC
- Accuracy (dB): Extech 407730 Digital Sound Level Meter ±2 dB vs BAFX Products Advanced Decibel Meter / Sound Level Reader ±1.5 dB
- Time weighting: Extech 407730 Digital Sound Level Meter Fast/Slow vs BAFX Products Advanced Decibel Meter / Sound Level Reader Fast (125ms) / Slow (1s)
- Data logging: Extech 407730 Digital Sound Level Meter false vs BAFX Products Advanced Decibel Meter / Sound Level Reader Stores up to 4,700 data points via USB with included Soundlab software (Windows only)
- Microphone type: Extech 407730 Digital Sound Level Meter 0.5 in. (12.7mm) electret condenser vs BAFX Products Advanced Decibel Meter / Sound Level Reader Electret condenser