1. Red/green alarm lights: Our Noise meter is equipped with red and green alarm lights that indicate the sound level. When the sound level exceeds 60dB, the alarm light turns red, alerting you to potential noise hazards. On the other hand, when the sound level is below 60dB, the alarm light turns green, providing a visual indication of a peaceful environment. 2. MAX function: With our Noise meter, you can accurately measure the maximum sound level in any given area. This feature allows you to identify the peak noise levels, making it easier to monitor and control noise pollution effectively. 3. Fast/Slow Mode: Our Noise meter offers both fast and slow modes for sound level measurement. In the fast mode, you can instantly read the real-time sound level, enabling quick assessments in dynamic environments. Alternatively, the slow mode provides you with the current average sound level over a longer period, giving you a comprehensive understanding of the overall noise conditions. 4. Power supply: Our Noise meter operates on 2*1.5V AAA batteries, ensuring portability and convenience. You can easily replace the batteries when needed, allowing for continuous monitoring without interruption. 5. Advanced features and certifications: Our Noise meter, model number FY8862, is a high-quality product manufactured in Mainland China. It is certified by CE and FCC, guaranteeing its compliance with international standards for safety and electromagnetic compatibility. While it is not a smart device, it offers precise measurement capabilities within a wide range of 30~130dB, providing accurate noise assessment for various applications., Manufacturer: BJdfgE