Decibel Meter Audio Level Meter Logger 30-135dB Noise Measurement Sound Level Meter Detector Diagnostic Tool

Features:
1?Widely use :
noise detect widely used in building construction,industrial production,living environment, traffic transport and sound insulation test
2?Time Weighted:
Use a time constant of 125 milliseconds,suitable for most situations noise measurement ; Use a 1 second time constant .applicable to measure when the noise value changes greatly.
3?Surroundings temperature:
Temperfature measurement is the current ambient temperature value press SEL switch to see, this item is an environmental auxiliary measurement function
Specification:
Model:SL620 digital sound level meter
Noise measurement range:35~135dB
Noise accuracy:2.0dB(reference sound pressure level,94dB@1kHz)
Frequency response:31.5Hz~8kHz
Time weighting (F/S switching):
FAST:use 125ms time constant(default use)
SLOW:use 1 second time constant(used when the tone value changes greatly)
Frequency weighting characteristics:A characteristic(A weight)
Digital display:4-digit LCD display
Resolution:01dB
Measuring two gears:Low file less than 100dB/High file greater than 100dB
Data retention:have
MAX/MIN:YES(large and small value measurements)
Ambient temperature measurement:0~60C(degree celsius)
Use battery:1.5V AAA*3 (7#batttery)(not include)
Working temperature and humidity :0~40C/10%-80% RH
Storage temperature and humidity:10~60C/10~70RH
Dimensions:147*59*30mm
Weight:about 76g
Package Including:
1 times; Noise meter
1 times; User annual