FDM01 Handheld Digital Sound Level Meter Noise Meter 30~130dB Decibel Detector Audio Noise Tester Measuring Instrument

Is Smart Device : no Measurement Range : 30~130dB Model Number : FDM01 Certification : CE Accuracy : ±1.5dB (Based on standard sound source, 94dB@1KHz Frequency range : 31.5Hz-8.5KHz Dynamic range : 3.50dB 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