The Extech SL510 Digital Sound Level Meter is a portable, handheld instrument for measuring sound level in dB (decibels). The meter features a standard 0.5-inch microphone head, A/C frequency weighting, an LCD display with backlight, compact design, and a wrist strap for single-handed operation.
The Extech SL510 is a compact digital sound level meter designed to measure sound pressure levels in decibels (dB). It features a standard 0.5-inch microphone head with windscreen, an LCD display with backlight, and supports A/C frequency weighting as well as Fast/Slow response times. The device includes functions for data holding, peak capture, and maximum/minimum recording. This manual is written in Chinese.
| Microphone | 0.5" Electret Condenser |
|---|---|
| Range | 35 to 130dB |
| Resolution | 0.1dB |
| Frequency Weighting | A and C (Selectable) |
| Accuracy/Resolution | +/-1.0 dB @ 1kHz / 0.1dB |
| Frequency Response | 31.5 to 8000 Hz |
| Response Time (Fast) | 125 ms |
| Power Source | 3 x 1.5V AAA batteries |
An external calibrator providing a frequency of 1kHz and a sound pressure level of 94.0dB is required.
The LCD display backlight automatically turns off after 10 seconds.
The instrument will turn itself off approximately 10 minutes after being idle to extend battery life.