Return to the Extech 407730 Digital Sound Level Meter| Part Number | Alternate P/N | NIST Certification | Price | |
|---|---|---|---|---|
| 407730 | 407730 | Without NIST Calibration Certificate | $89.99 | |
| 407730-NIST | 407730NIST | With NIST Calibration Certificate (7 to 10 days lead time) | $214.99 |