Features1Multi Functional Design: The sound level reader can be used not only to measure indoor and outdoor environmental noise, but also for noise testing in different scenarios such as construction sites, cars, and workshops. 2High Accuracy Measurement: The sound level meter accurately reads the environmental noise level and provides reliable decibel measurement results. 3Digital Display: The clear digital display screen of the digital sound level meter makes it easy to quickly read and analyze noise data. 4Compact and Portable: The decibel meter is lightweight and compact, making it easy to carry and operate with one hand, suitable for various scenes. 5Battery Powered: The sound noise meter is equipped with 3 AAA batteries, a windproof sponge ball, and a user manual. The decibel meter has been adjusted correctly and can be used immediately after installing the battery.SpecificationItem Type:SoundLevelMeterProduct Material: ABSWeight: Approx. 178g / 6.3ozMeasurement Range: 30~130dBAAccuracy: 1.5dBResolution: 0.1dBFrequency Range: 31.5Hz~8KHzSampling Frequency: 2 Times Per SecondBattery Type: AAA Battery (Shipped With Matching Battery)Number Of Batteries: 3Single Battery Capacity: 1300mAhPackage List1 x Noise Meter1 x Protective Sleeve1 x Windproof Ball3 x AAA Battery2 x Manual