FNIRSI FDM01 Noise Meter FNIRSI FDM01 Noise Meter Features Exceptional Precision Achieve unparalleled accuracy with our noise meter, offering precision within ±1.5dB. Designed around a standard sound source (94dB@1KHz), the FDM01 ensures that you receive the most reliable readings, whether you're in a quiet library or a busy urban environment. Broad Frequency and Dynamic Range The FDM01 caters to a comprehensive array of audible frequencies, ranging from 31.5Hz to 8.5KHz, with a dynamic range of 30-130dB. This versatility makes it ideal for various environments and applications. Real-Time Digital Display Experience instant results with a high-resolution digital display that updates at a rate of 2 times per second. Each scale represents 2dB, providing clear visibility of every measurement. Versatile Dynamic Characteristics Whether you're capturing sudden loud sounds or monitoring ongoing ambient noise, the FDM01 offers FAST and SLOW response speeds for incredible versatility. Additionally, you receive straightforward overload warnings with "OVER" and "UNDER" indicators, ensuring user-friendly operation. Durable and Long-Lasting Equipped with a robust 600mAh/3.7V lithium battery and a durable 6mm condenser microphone, the FDM01 is built to withstand harsh conditions. It guarantees consistent performance in both freezing and humid climates. Specifications Brand: FNIRSI Model: FDM01 Accuracy: ±1.5dB (94dB@1KHz standard sound source) Frequency Range: 31.5Hz-8.5KHz Dynamic Range: 30-130dB Display: 4 digits, resolution 0.1dB Sampling Rate: 2 times/second Microphone: 6mm condenser microphone Battery: 600mAh/3.7V lithium battery Operating Conditions: 0℃-40℃, 10%-80% RH Storage Conditions: -10℃-60℃, 10%-70% RH Package Included 1 x FNIRSI FDM01 Noise Meter 1 x Charging Cable 1 x User Manual 1 x Packing Box
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