MT-911A Mini Sound Level Meter with Temperature

This unit adopts condenser microphone as the sensor, high configuration MCU calculation, high accuracy, fast response. This Sound Level Meter is designed to meet the measurement requirements of safety Engineers, Health, Industrial safety offices and sound quality control in various environments like factory, school, construction, etc.

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 Applied Standard IEC61672-1 CLASS2
 Measuring level range 35dB~135dB
 Dynamic range 50dB
 Frequency range 31.5Hz~8KHz
 Accuracy ±2.0dB
 Frequency weighting A frequency weighting
 Time weighting FAST:125ms/ SLOW: 1s
 Microphone 1/2 inch electrets condenser microphone
 High/low reading indication ﹥100dB,LCD displays“Hi”
﹤100dB,LCD displays“LO”
 Temperature range -20℃~70℃/-4℉~158℉
Temperature accuracy±1.5℃/2.7℉
Data update300ms
Battery lifeat least 60 hours
Enable/Disable Auto power offThe meter shuts off automatically after 15 minutes inactivity under auto power off mode, disable auto power off is available
Battery3*1.5V “AAA” batteries
Operating conditions-20℃~60℃/-4℉~140℉,10RH%~90 RH%
Storage conditions-20℃~60℃/-4℉~140℉,10 RH%~75 RH%

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