Decibel Meter, SPL Meter 30dB to 130dB(A), Sound and Noise Level Reader Monitor, A/C Weighted, Visual Alarm, Rechargeable, for Home, Classroom

This Decibel Meter is a reliable and easy-to-use sound and noise level reader designed for a wide range of environments, including homes, classrooms, offices, and more. With a measurement range of 30dB to 130dB(A), it accurately captures everything from near-silent whispers to loud machinery noise. The SPL meter supports both A and C frequency weightings, giving you the flexibility to measure sound levels suited to different acoustic needs. A built-in visual alarm alerts you when noise levels exceed a set threshold, making it ideal for monitoring environments where sound control is important. The record function allows you to log and review readings conveniently, so you never miss critical data. Powered by a rechargeable battery, this meter eliminates the hassle of constantly replacing disposable batteries, keeping it ready whenever you need it. Its straightforward interface makes it accessible for both professionals and everyday users looking to monitor their sound environment with confidence. Specification: Calibration sound source: 94dB@1KHz Measurement range: 30~130 dB(A), 35~130dB(C) Accuracy: ±1.5dB(Reference sound pressure standard,94dB@1KHz) Resolution: 0.1dB Frequency weighting: A/C Frequency response: 31.5Hz~8500Hz Time weighting: FAST/SLOW Sampling rate: FAST: 8 times/second, SLOW: 1 times/second Rated current: 70mA Standby current: 5uA Power supply: 3.7V lithium battery /1000mAh Charging time: 1.5h Duration of service: 8h Data storage: 31,000 Microphone: 1/2-inch polarization capacitance microphone Operating temperature: 0~50℃ Operating humidity: 10~80%RH Dimension: 160*56*31mm(Excluding sponge ball) Weight: Approx 126g(Excluding sponge ball)

• WIDE MEASUREMENT RANGE: Accurately measures sound levels from 30dB to 130dB(A), making it suitable for home, classroom, and various environments.
• A/C WEIGHTED MODES: Switchable A-weighting and C-weighting filters allow for precise sound measurements tailored to different acoustic testing needs.
• RECORD FUNCTION: Captures and stores peak and maximum sound level readings, enabling easy review and analysis of noise data over time.
• VISUAL ALARM: Built-in visual alarm alerts you when noise levels exceed a set threshold, helping you monitor and manage loud environments effectively.
• RECHARGEABLE DESIGN: Features a built-in rechargeable battery for convenient, cord-free use, eliminating the need for frequent battery replacements.