
The Impulse Integral Sound Level Meter is a universal sound level meter that measures the exponential
time weighted sound level, an integrated average sound level meter that can measure the time average
sound level, and an integrated sound level meter that measures sound exposure. It can also measure
Accumulated percentile sound level (statistical sound level). Its performance is in accordance with GB/T
3785-2010 standard level 2 And IEC 61672:2013 Class 2 sound level meter requirements. It also meets the
Microphone: 12.7mm (1/2‘) test condenser microphoneΦ
Frequency weighting: A, C, and Lin(Linear)
Measurement range: 25dB ... 130dB (A)
Range control: manual, three gears, linear range > 60dB
30dB ... 90dB (dynamic scale display 10 ... 100)
50dB ... 110dB (dynamic scale display 30 ... 120)
70dB ... 130dB (dynamic scale display 50 ... 140)
Accuracy: in accordance with IEC61672 standard, class 2
Time weighting: Fast (F), Slow (S), Impulse (I)
Display: large screen dynamic LCD, instantaneous sound level, with analog
The output interface: AC signal output
Calibration: use class 1 sound level calibrator
Power Supply: 4 x 1.5 V AAA (UM-4) Battery
External power supply: 6V
Weight: 185g (Not Including Batteries)
Operating Condition: Temperature: -10 ... 50°C
With the function of integration and statistics, 800 groups of single measurement and 6 days of regular
measurement can be achieved. The stored data can be read and printed. The collected data can be checked
when the regular measurement is paused.
»The three time weighting F, S, and I measurements can be selected.
»The digital detection technology is used to replace some traditional sound level meters, the stability and
reliability are greatly improved.
»Large screen display is adopted, with clear and intuitive display. With dynamic scale display.
»It can be connected with computer through USB interface or Bluetooth adapter, and measurement data
can be sent to general computer for analysis and processing.
»Optional Bluetooth printer for measurement data printing.