The 407703A Analog Sound Level Meter is a portable sound level meter that can be connected to chart recorders and data loggers. It features selectable ‘A’ or ‘C’ weighting and fast or slow response time, as well as a built-in 0.5” electret microphone. The instrument also provides a two-color, bright analog display with battery check and has a measurement range from 54 to 126 dB.
The EXTECH 407703A is an analog sound level meter designed for economical field use. It features a two-color bright display with a MAX HOLD switch to lock the highest reading, powered by a 9V battery. The device includes a built-in 0.5" electret microphone and offers selectable weighting ('A' or 'C') and response times (Fast or Slow).
| Measurement Range | 54 to 126 dB in 7 ranges |
|---|---|
| Accuracy | +/- 2.0 dB @ 94dB, 1000Hz |
| Weighting Options | 'A' and 'C' |
| Response Time | FAST and SLOW |
| Microphone Type | 0.5" Electret Condenser type |
| Analog Output | AC: 0.707¥rms. |
| Power Supply | 9V Battery |
| Dimensions | 68 x 180 x 36mm |
| Weight | 5.1 oz. (160g) |
The device measures sound levels from 54 to 126 dB across seven ranges.
Users can select weighting 'A' or 'C' and response times FAST or SLOW.