Cadrim Digital Sound Level Meter Portable Sound Meter Data Logger Decibel Noise Meter Tester 30-130dB Auto OFF Alarm Function Max/Min Hold Sound Measure LCD Screen 9V Battery Noise Measurement Tester
- [Fast & Precise] Accuracy within +/- 3.5dB; resolution: 0.1dBA; response speed: 0.5 seconds; time level: fast response (125mS); Sound level frequency weighting: A
- [Please Note] 1. When display 20-40 dB, it is normal in a quiet room where no one is talking. The sound of normal conversation is 40-60dB. 2. If you have any questions or problems, please contact the seller directly for help~ Do not return it directly.
- [High Quality LCD Screen] High display quality, low eye damage, low power consumption, low radiation.