Features High accuracy: the sound level meter uses high-precision measuring technology and sensors that can accurately measure the sound level in the environment. Users can make decisions based on the measurement results, such as choosing a quiet working environment or adjusting the volume to protect their hearing or improve work efficiency. Scope of application: the decibel meter can be used in various areas, e.g. environmental monitoring, factory safety, building management, traffic noise control, etc. It can be used to measure the sound pressure level of different sound sources, e.g. machine equipment, noise, traffic noise, ambient noise, etc. Portable and easy to use: sound level meters are very small and lightweight, easy to carry and use. Users can carry a sound level meter with them for measurement at any time and thus conveniently monitor the noise level both outdoors and indoors. ABS MATERIAL This sound level meter is made of high quality ABS material and is strong and sturdy, wear-resistant and scratch resistant to withstand various scenes and ensure long service life. Stable and reliable: sound level meters are usually able to monitor and display sound levels in real time, allowing users to immediately understand the current noise situation in the environment. This allows users to take measures in time, such as adjust the volume, isolate noise sources, etc. to improve the working and living environment. Specification: Item Type:Sound Level Meter Material: ABS Frequency weighted feature: A weighted Frequency response: 31.5Hz to 8KHz Measuring range: 30 dB to 130 dB. Response time: (FAST) 125 milliseconds (SL0W) 1000 milliseconds less than 30 dB. Overload indicator: more than 130dB Accuracy: ± 1.5 dB. Auto power off: about 10 minutes Low voltage message: the battery voltage is below 6 V. Sensor: 1/2 inch electret condenser microphone Power supply: 9V 6F22 battery x 1 (battery not included). Size: approx. 192 x 53.8 x 35 mm / 7.56 x 2.12 x 1.38 inches. Package list: 1 x sound level meter. 1 x user manual (English language Package List 1 x Sound Level Meter 1 x Manual