A digital noise meter is an instrument used to measure the sound intensity generated by the environment or machine equipment. The JD-115 JD-118 digital noise meter has the characteristics of simple operation, high accuracy, and easy portability. Can be used in fields such as machine manufacturing, equipment maintenance, architectural design, transportation, environmental protection, and healthcare. Compared with traditional sound level meters, digital noise meters have higher accuracy, wider frequency response range, better stability, and repeatability.

Frequency range: 31.5Hz-8kHz.
Measurement range: 30dB to 130dB.
Sound level frequency level: A-weighted level.
Microphone: 1/2-inch polarized condenser microphone.
Display: 3-1/2-digit LCD display.
Resolution: 0.1dB.
Time weighted: rapid response (125ms).
Accuracy: ± 1.5dB (under 1kHz, 94dB conditions).
Alarm function: Display "OL" when the input exceeds the range.
Automatic shutdown: After 10 minutes of no operation, it will automatically shut down.
Battery: 4 ordinary standard No. 7 batteries, pay attention to the battery polarity during installation.
Working temperature: 0 ℃~40 ℃.
Working environment humidity: (10~75)% RH.
Storage temperature: 0 ℃~60 ℃.
Storage humidity: less than 90% RH.