Specifications:

• Sound db meter calibrated at factory, noise measurement range from 30 - 130dBA, accuracy: ±1.5dB, resolution: 0.1dB. Disable the automatic off function, sound meter can continuously measure noise value
• Sound meter features backlight alarm, large LCD display, maximum/ minimum noise monitor, data hold function, auto/manual power off, disable the auto off function, sound level meter can continuously measure noise value, battery indication
• Decibel meter is ideal for neighbors noise complaints, job-site and noise pollution monitoring
• Portable sound level meter is light and compact design, easy to carry with you and operate with one-hand
• Noise meter 3 pcs AAA batteries(Not Included), a wind-proof sponge ball and user manual. The decibel meter has been adjusted properly, it can be used immediately after the battery being installed.

Decibel Meter Sound Level Reader 30-130dB(A), Hand-held Sound Noise Meter with Backlight Alarm, Digital Noise Meter Decibel Monitoring Tester Calibrated Audio Noise Volume Measuring Instrument