FNIRSI® FDM01 High-precision Digital Noise Decibel Meter

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Features: Free sensitivity Temperature and humidity detection Light alarm Mobile app intelligent linkage Conforms to International Committee IEC651TYPE2 and American International Standard ANSIS1.4TYPE2 standards Measurement range: 30dB-130dB Accuracy: ±1.5dB A-weighting responses, with fast and slow response rate selection "Automatic shutdown in 15 minutes" function Dual mode switching with adjustable sensitivity Diligently designed with attention to detail Specifications: Model FDM01 Accuracy ±1.5dB (Based on standard sound source, 94dB@1KHz) Frequency range 31.5Hz-8.5KHz Dynamic range 3.50dB Measuring range 30-130dB Frequency weighting characteristics A weight Digital display 4 digits, resolution 0.1dB, sampling rate 2 times/second Dynamic scale display 1 scale represents 2dB, and the sampling rate is 2 times/second Dynamic scale gear 30-130dB Overload indication "OVER" and "UNDER" symbols indication Dynamic characteristics FAST (fast) and SLOW (slow) two response speeds. Microphone 6mm condenser microphone Maximum value lock MAX Battery 600Mah/3.7V lithium battery Working temperature and humidity 0℃-40℃, 10%-80%RH Storage temperature and humidity -10℃-60℃, 10%-70%RH Package List: ◉ FDMO1 Noise Decibel Meter *1 ◉ Product Manual *1 ◉ Packing Box *1 ◉ Charging Cable *1 Show more