Return to the Extech 407703A Analog Sound Level Meter| Part Number | Alternate P/N | NIST Certification | Price | |
|---|---|---|---|---|
| 407703A | 407703A | Without NIST Calibration Certificate | $79.99 | |
| 407703A-NIST | 407703ANIST | With NIST Calibration Certificate (7 to 10 days lead time) | $154.99 |