[Digital Sound Level Meter]: This sound level meter is a digital device that measures the sound pressure level in decibels (dB) and can accurately measure the sound pressure level in the range of 30-130 dBA. [High Accuracy]: The sound level meter is designed to provide accurate measurements with an accuracy of ±1.5 dB (94 dB @ 1 kHz). [For Home, Classroom and Street]: The sound level meter is suitable for use in homes, classrooms and streets, allowing you to monitor the noise levels in your environment. [Noise Decibel Reader]: The sound level meter is a noise decibel reader that can accurately measure the sound pressure level in the range of 30-130 dBA. [Easy to Use]: The sound level meter is easy to use and comes with an LCD display for easy reading of the measured sound pressure levels. Color: Black Material: Plastic Measuring Range: 30–130 dB Accuracy: ±1.5 dB (94 dB @ 1 kHz) Display Resolution: 0.1 dB Package Contents: 1 x Digital Sound Level Meter Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture to appear slightly different from the real thing. The measurement allowed error is +/- 1-3 cm.