Fast and slow response modes with a frequency range of 31.5 Hz to 8 kHz provide weighted measurement to detect low-noise environments, while the ABS design offers durable and easy handling. Auto power-off and one-button operation make this multi-function sound level detector simple to use, combining user-friendly features with professional performance. Ideal for homeowners, noise engineering professionals, and educators, this decibel tester simplifies the evaluation of noise levels and target setting. Dynamic range of 50 dB supports both indoor and outdoor applications, suitable for home soundproofing, workplace compliance, and industrial noise control. Use scenarios: - Home improvement: assess room noise to guide soundproofing or optimize a home theater setup. - Workplace or industrial environments: monitor noise levels to ensure compliance and evaluate the effectiveness of noise-control measures. - Educational settings: demonstrate fundamentals of sound level measurement in classrooms or training labs.