Features: Experience precise sound measurement with our High Precisions Decibel Meter, designs to accurately capture environmental noise changes for reliable data. Featuring a Easy Carry designs and easy to read LCD display, this sound level meter ensures user friendly operation across various setting . Ideal for music enthusiasts, teachers, engineers, and professional who need to Monitors noise levels. Perfect for use in homes, schools, construction site , concerts, and any environment where volumes monitoring or analysis is required. Crafted from ABS material, this noise meter is a stable tool for anyone search accurate sound assessment and environmental noise controls. Specifications: Material: ABS GM1351 battery: 1x9V battery GM1352 battery: 3xAAA battery Type: GM1352/GM1351(optional) Length: about 23cm/9inch Width: about 21cm/8inch Height: about 9cm/3.5inch Package Includes: 1 set Decibel Meter note: Please allow 1 to 3cm error due to manual measurement, please make sure you do not mind before you bid, Due to the differences between different monitors, the picture may not reflect the actual colorful of the item.