This Sound Level Meter has been designed to meet the measurement requirement of noise engineers, noise quality control and health prevention in various environments, such as noise measurement in factory, office, traffic road, family and all other noise measurement applications.
| Calibration sound source | 94dB@1KHz |
| Measurement range | 30~130 dB(A), 35~130dB(C) |
| Accuracy | ±1.5dB(Reference sound pressure standard,94dB@1KHz) |
| Resolution | 0.1dB |
| Frequency weighting | A/C |
| Frequency response | 31.5Hz~8500Hz |
| Time weighting | FAST/SLOW |
| Sampling rate | FAST: 8 times/second SLOW: 1 times/second |
| Rated current | 70mA |
| Standby current | 5uA |
| Power supply | 3.7V lithium battery /1000mAh |
| Charging time | 1.5h |
| Duration of service | 43,000 |
| Microphone | 1/2-inch polarization capacitance microphone |
| Operating temperature | 0~50℃ |
| Operating humidity | 10~80%RH |
| Dimension | 160*56*31mm(Excluding sponge ball) |
| Weight | Approx 114g(Excluding sponge ball) |
DC output: Output the noise value by voltage mode according to proportion
| DC voltage range | 300mV~1300mV |
| DC voltage error | ±5mV |
| DC impedance | 120R |
| DC and noise relationship | Vout= dB x10 Unit: mV (dB: noise value, Vout: DC output voltage) |
