The LATNEX SM-130DB Sound Level Meter is a digital noise meter with an auto-shifting function that can be applied to the measurements of both environmental and mechanical noise. Specifications: Sample Rate: 1 Second， Standard applied: IEC 61672-1 class2， IEC651 Type2， ANSI14 Type2， Microphone: 1/2 in. electret condenser， microphone， Resolution: 0.1dB， Accuracy: ±1.8dB (ref 94dB@1KHz). Level range: Low: 35~80dB; Med: 50~100dB; High: 80~130dB， Dynamic range: 50dB， Frequency range: 31.5Hz~8KHz Part List: 1 x SM-130DB Sound Level Meter， 1 x User's Manual， 1 x 9V battery， 1 x Soft pouch carrying case and 1 x Windscreen.

Sound decibel meter type 2 - digital sound level meter with calibration certificate

Measurement sound level - operating range from 35dB - 130dB (decibel)

Sound level meters - noise measurement device for application applications include: environmental and machines noise tester， warehouses， factories， office buildings， restaurants， schools， classrooms， library， hospitals， art galleries， stadiums， building security

Accurate and reliable - 1/2 in. electret condenser microphone， accuracy ±1.8dB (ref 94dB@1KHz) and 0.1dB resolution