The Extech 407735-NIST / 407736 Digital Sound Level Meter is a high accuracy Type II measurement instrument with 1.5dB or 2dB accuracy.
The Extech Instruments Corporation presents two models of digital sound level meters: the 407735 with 2dB accuracy and the 407736 with 1.5dB accuracy. These devices are designed for general purpose and high accuracy Type II measurements, supporting A and C weighting.
| Accuracy (407735) | 2dB accuracy |
|---|---|
| Accuracy (407736) | 1.5dB accuracy |
| Resolution | 0.1dB resolution |
| Weight | 7.6 oz (215g) |
Model 407735 has a low range of 35 to 100dB and a high range of 65 to 130dB.
Model 407736 has a low range of 35 to 90dB and a high range of 75 to 130dB.
Model 407736 provides a 1.5dB accuracy.