SLM-814CD Digital Sound Level Meter Decibel Logger 40~130dB USB & CD

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 Model: SLM-814CD

This product is high-precision instruments that measures sound pressure level with measuring accuracy up to ±2dB commonly used in noise pollution studies for the quantification of almost any noise, but especially for industrial and environmental. It can be used as Data Logger to record Noise Data into your PC or Laptop via the USB port. With the cable attached to the USB port of the meter and Software CD installed to your PC/Laptop, you can view the online test, real time data measurement curve diagram and data input/output and the curve of the noise maps. You can also save and print for later comparison.

Featuring wide measuring range (40 ~ 130 dB), Bar-Graph Indication, A/C frequency weighting, Fast / Slow response and Maximum Hold function. The meter also provides a windscreen to filter-out unwanted signals. In addition, the meter meets the International Committee of the IEC651 TYPE2 and the American National Standards ANSIS1.4 TYPE2 as well as the measurement requirements of Safety Engineers, Health, Industrial Safety Offices and Sound Quality control in various environment.

Sound level meter can be used for noise projects, quality control, environmental noise control and health monitoring such as: construction, schools, hospitals, shopping malls, theaters, offices, road traffic, family, audio and other occasions, the noise level measurement applications. The meter has wide range of applications such as noise pollution studies, research and other industrial use.


  • Passed the high standards of IEC651 TYPE 2 & ANSI S1.4 TYPE 2 for sound level meters
  • With Software CD & USB Cable, for recording date into your PC
  • Instantaneous sound measure function
  • Wide measuring range 40 ~ 130dB (decibels)
  • Two equivalent weighted sound pressure levels, A and C
  • Fast and Slow dynamic characteristics modes
  • Max locked function has the maximum value, after the stent-in-one unique, easy to use
  • AC Analog Signed Output for frequency analyzer level recorder or X-Y axis, FFT analyzer, graphic recorder, etc. to do statistical analysis of data logger
  • Auto power off function
  • Low-power display or low battery indicator
  • Overload prompts
  • Portable, easy to use and handy
  • Tripod Mounting option
  • Sound Level Selecting Button Switches
  • Recorded data plotted in Graph be shown on the PC's display window and can be printed


  • Sound Level: 40 ~ 130 dB With Level Selecting Button Switches
    • level 1: 40 ~ 70dB
    • level 2: 60 ~ 90dB
    • level 3: 80 ~ 110dB
    • level 4: 100 ~ 130dB
    • level 5: 40 ~ 130dB
  • Accuracy : ±2dB (under reference condition)
  • Measuring Level : 40~130dBA, 40~130dBC
  • Frequency Range : 31.5 Hz ~ 8.5 kHz
  • Linearity/Dynamic Range : 30dB
  • Frequency weighting : A and C features
  • Digital LCD : 45 x 35mm with 4 digits
  • Resolution : 0.1dB
  • Display: 0.5 secretary
  • Sampling Rate: 2 times/second
  • Dynamic Characteristic (Time weighting) : FAST (high speed) / SLOW (low speed)
  • 1 bar graph represents 1dB in the Analog Bar Graph
  • Bar Graph : 50dB scale at 1dB step for monitoring current sound pressure level display period of 50mS
  • Level Ranges : 40 ~ 70dB, 60 ~ 90dB, 80 ~ 110dB, 100 ~ 130dB, 40 ~ 130dB
  • Load indication : Use the symbol OVER (indicating over range) and UNDER (indicating less than lower limit of the range)
  • AC output : 0.707 Vrms at FS output impedance approx. 600O
  • Microphone : 1/2 inch electret condenser microphone
  • Maximum Hold
  • Working Environment
    • Temperature: 0~40°C (32~104°F)
    • Humidity: 10~70% RH
  • Storage Environment
    • Temperature: -10~50°C (14~122°F)
    • Humidity: 10~80% RH
  • Power Supply: 6F22 9V alkaline cells/battery or DC 9V 100mA
  • Weight: approx. 380g

Set Included:

  • 1 x Professional Sound Level Meter
  • 1 x Sponge Ball or Windscreen
  • 1 x 9V 6F22 Battery
  • 1 x Instruction Manual
  • CD software & USB cable
  • Standard factory package

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