Extech 407780A Integrating Sound Level Meter
Features:
- 4-digit multifunction LCD with analogue bargraph
- Precise linearity over wide range (100dB)
- Display modes: SPL, SPL MIN/MAX, SEL, and Leq
- Programmable integrating time
- A and C Frequency weighting
- Impulse/Fast/Slow response settings
- Datalogging function records up to 32,000 records
- Real time calendar/clock
- Analog and alarm output features can be used to connect with Frequency analyzers, chart recorders, external dataloggers, and sound level alarms
- Built-in USB interface with included Windows® datalogging software
- Tripod mount
- Meets IEC 61672-1, 60651/60804 Type 2 and ANSI S1.4 Type 2 specifications
- Complete with windscreen, adjustment screwdriver, USB cable, Windows® compatible software, battery, and case
Extech 407780A USB Sound Level Specifications
| Microphone | 0.5″ (12.7mm) Electret Condenser Microphone |
| Measurement Range | 30 to 130dB |
| Frequency Range | 31.5 to 8kHz |
| Sampling Time | Updated every 0.5s |
| Accuracy | ±1.5dB (ref 94dB@1KHz) |
| Resolution | 0.1dB |
| Measurement Parameters | SPL, SPL MIN/MAX, SEL, and Leq |
| Frequency Weighting | A and C |
| Response | Impulse, Fast and Slow |
| Data Storage Capacity | 32,000 Samples |
| Battery | (4) 1.5 Volt AA Batteries |
| Battery Life | Approximately 24 Hours |
| PC Interface | USB |
| Software | Windows XP and Vista 32-Bit Compatible |
| Standards Compliance | IEC: 61672-1, 60651 and 60804 Type 2 ANSI: S1.4 Type 2 |
| Dimensions | 265mm x 72mm x 21mm |
| Weight | 310 grams |
