| Measurement Range | 30~130dBA |
| Accuracy | +/- 1.5dB (at reference pitch, 94dB@1kHz) |
| frequency range | 31.5Hz~8.5kHz |
| frequency Weighting | A-Weighted (simulated human ear) |
| maximum display | 3 ½ digit LCD display, maximum 1999 reading |
| display resolution | 0.1dB |
| The sampling rate | 2 times/second |
| Max/MIN Minimum | MAX/MIN |
| microphone | 1/2 inch condenser microphone |
| Operating Environment | 0~40℃ 10~80%RH |
| Storage environment | -10~60℃ 10~70%RH |
| Power Supply | One 9V battery, or DC 9V 100mA DC Power Supply |
| Dimensions | 205*55*30mm |
| Product net Weight | Approximately 125 grams |
Warranty days: 365 days