| Frequency range | 10Hz-20kHz |
| microphone | Φ12.7mm (1/2 ") test condenser microphone |
| Frequency Weighting | A Weighting, C Weighting, Lin (linear) |
| range control | Automatic range/manual, three gears, linear range > 60dB |
| Measurement range | 30dB~ 90dB (dynamic scale display 10dB~ 100dB); 50dB~ 110dB (dynamic scale display 30dB~ 120dB); 70dB~ 130dB (dynamic scale display 50dB~ 140dB) |
| Instrument Accuracy | Compliant with IEC61672 standard, level 1 |
| time Weighting | Fast (F), Slow (S) and Pulse (I) |
| display | Large screen dynamic LCD display, instantaneous sound level, with analog meter display |
| output interface | AC output, USB interface |
| Power | 5 AA batteries |
| External Power | 5V |
| Dimensions | 270mmx90mmx32mm |
| Conditions of use | -10°C~50°C |
Warranty days: 365 days
1. For product quality problems caused by non-human products of instruments and equipment, the manufacturer will provide free warranty services during the warranty period;
2.Instruments and equipmentPackage return and exchange within one month