GM1356 Digital USB Noise Meter Sound Level Meter Decibel Meter 30-130dB A/C FAST/SLOW dB + Software with Carry Box

Description This sound level meter is an ideal tool to measure Sound Pressure Level in decibels dB It is used for sound quality control in factory office home school restaurant hospital and construction site etc Features Wide measurement range 30 130dBA 35 130dBC Accuracy up to 1 5dB This unit was designed according to following standards A International electrician committee standard IEC PUB 651 TYPE2B US national standard ANSI S1 4 TYPE2 With modern compact portable design Easy to use Frequency weighting characteristic AC Time weighting characteristic FastSlow AC DC output Bar graph indication Equipped with sponge ball to filter out unwanted signals Max reading hold USB interface Analyse software Auto power off Overload indication OVER UNDER Auto backlight display Low battery indication Powered by 4x1 5V AA batteries Not included Approved by CE ROHS FCC standard Specification Measuring range 30dBA 130dBA 35 130dBC Accuracy 1 5 dB Frequency range 31 5Hz 8 5KHz Frequency weighting A C Digital Display 4digits Resolution 0 1dB Measuring level 30 130 40 90 50 100 60 110 80 130 Linearity range 50dB 100dB Sample rate 2 times second AC output 0 707Vrms at FS output impedance approx 600 ohm DC output 10mV dB output impendance approx 100ohm Microphone 1 2 inch electret condenser microphone Power supply 4 x AA 1 5V Battery Not included Operating condition 0 40 10 80 RH Storage condition 10 60 10 70 RH Weight 30