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A sound level meter is an instrument used to measure the sound pressure level, i.e. the intensity of sound present in a given environment. This instrument is commonly used to assess the noise level in different contexts, such as industrial environments, roads, buildings, concerts, and more.

The sound level meter measures sound pressure level in decibels (dB), a unit of measurement of sound power. Sound level meters are used to monitor and record sound levels to assess compliance with noise regulations or to conduct research on the acoustic quality of the environment.

The operation of a sound level meter is based on several components that work together to measure the sound pressure level. Here is a simplified overview of how a sound level meter works:

Microphone: The sound level meter is equipped with a sensitive microphone, designed to capture air pressure variations caused by sound waves in the environment.

Pressure-sensitive element: The microphone converts sound pressure variations into an electrical signal. This signal represents the trend of the sound wave over time.

Amplification: The electrical signal generated by the microphone is often too weak to be used directly, so it passes through an amplification circuit to increase its intensity.

Frequency-weighted filter: To take into account the fact that the human ear perceives different frequencies of sound differently, sound level meters are often equipped with frequency-weighted filters. These filters give greater weighting to frequencies that are more audible to the human ear.

Conversion to decibels: The amplified signal is then converted into decibel (dB) units, which represent the sound pressure level. The decibel scale is logarithmic, reflecting the human perception of sound.

Display: The sound level meter shows the current sound pressure level in decibels on a display. Some sound level meters can also record and display data over time.

Calibration: Periodically, the sound level meter can be calibrated to ensure the accuracy of measurements. Calibration involves comparing the sound level meter with a known reference standard and making any necessary corrections.

 

 

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  1. VG980-601 Sound level meters class I (A+C) with SD card

    Electric sound level meter class I (A+C) with included micro-SD 8Gb.

    Precise weighing A (human ear) and C (machine noise).

    KHz: 0.03 0.06 0.12 0.25 0.5 1 2 4 8

    db± 2 1.5 1.5 1.4 1.4 1.1 1.6 1.6 2.1

    A-weighing (environmental sound level)

    Weighing C (machine noise control)

    Flow rates db: 30:80-50:100-80:130

    Resolution: 0.1 db

    Hertz: 31.5-16,000

    RS232/USB output

    6 x 1.5V AA included.

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    €399.00
    (Incl. Tax: €486.78)
  2. VG982-415 Digital Sound Level Meter Class II (A)

    Digital Sound Level Meter Class II (A)

    Capacity: 35-130dB

    Accuracy: ± 2dB

    Range dB: 30: 70-60: 100-90: 130

    Hz: 125-8000

    A/C weighing

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    €84.00
    (Incl. Tax: €102.48)
  3. PCE Intruments PCE-MND 10 Sound monitoring with measuring range from 70 to 140 dB

    The sound meter is designed to assess noise in work environments, following IEC 61252:2002, with measurement ranges from 70 to 140 dB and frequency weightings A, C and Z ideal for occupational safety. It offers weighting options between fast, slow and impulse, and an internal 470 mAh battery with over 15 hours of autonomy.
     
    - Frequency weighting A, C and Z
    - Battery autonomy >15 hours
    - Software for parameter setting
    - Measuring range: 70 ... 140 dB
    - IEC 61252:2002, ANSI S1.25-1991
    - Optional: ISO certification
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    €994.90
    (Incl. Tax: €1,213.78)
  4. PCE Intruments PCE-SLT-KIT-N Sound level meter and sound calibrator for fixed installation with relay output, control output and different sound pressure levels

    - Measuring range: 30 ... 130 dB in three ranges
    - Resolution: 0.1dB
    - Accuracy: ± 1.5 dB
    - IP65 display
    - 4-20 mA output
    - Reference level: 94, 104, 114 dB
    - Frequency weighting: A, B, C, D
    - Class 2
    - Connection for 1/2" microphones
    - Battery power supply
    - Autonomy: 50 hours

     

     

     

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    €598.90
    (Incl. Tax: €730.66)
  5. PCE Intruments PCE-NDL 10 Portable sound meter with RS-232 and USB interface

    The PCE-NDL 10 Sound Level Meter is a portable instrument suitable for determining sound levels in various situations. It has internal memory and an SD memory card slot for storing data. It is not suitable for noise measurement at fixed locations, but offers results that can be displayed via the interface after measurement. The sampling rate is approximately 1 second, but can be manually adjusted between 1 and 3600 seconds. In summary, it is a versatile instrument with advanced functionality for noise level measurement and analysis.
     
    - Measures SPL and dose in dB
    - Manual or adjustable automatic data logging
    - Data hold, min / max, date / time, auto shutdown (on / off) and audible alarm (on / off) functionality
    - Internal memory and SD card slot (SD card included)
    - RS-232 and USB interface
    - Backlit LCD screen
    - Portable
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    €734.90
    (Incl. Tax: €896.58)
  6. PCE Intruments PCE-MSM 4 Entry level noise meter for industrial use - High accuracy of ± 1.4 dB

    The noise meter PCE-MSM 4 has features that you will only find in other more expensive devices. The precision decibel meter in slim design is ideal for mobile measurements of sound. Noise generated in various environments, at the workplace, at machine controls, on the construction site, at events, e.g., concerts, or neighborhood noise can be easily and comfortably measured and displayed with the sound level meter.
     
    - Easy to use
    - Measuring range from 30 ... 130 dB
    - Measuring ranges: Low, Medium, High, Auto
    - Including wind noise suppressor
    - A and C frequency rating
    - Fast and slow time evaluation
    - Max Hold function
    - 4-digit LCD display
    - Background lighting
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    €155.90
    (Incl. Tax: €190.20)
  7. PCE Intruments PCE-SLM 10 Sound sensor with 75 mm digit height - Integrated condenser microphone

    The dB display PCE-SLM 10 is suitable for the continuous measurement and visualization of the sound pressure level. The PCE-SLM 10 Noise Meter is used in schools, open-plan offices, bars, clubs and other event venues. Due to the large digits of the dB display, the measured value is always easy to read. Due to the LED display, this is also possible in dark environments without any problems. The dB display is powered by USB with the optional AC adapter or external battery pack. 
     
    - 75 mm / 3 in digit height
    - 30 ... 130 dBA measuring range
    - 0.1 dB or 1 dB resolution
    - Wall mounting
    - Operation via micro USB socket
    - Alarm function
    - For offices, schools, event rooms
    - Memory for 657,000 readings
    Learn More
    €268.90
    (Incl. Tax: €328.06)
  8. PCE Intruments PCE-SLD 10 Sound level data logger with 4 ... 20-mA output - Large LC display

    The sound level data logger PCE-SLD 10 is used for permanent monitoring of the sound level. In addition to storing the measured values, the sound level data logger is able to display the measured values ​​on a display and output them as a 4 ... 20-mA analog value. The decibel meter has a wide measuring range of 30 ... 130 dB. Frequency weighting is done in A or C depending on the selected measurement mode. Alternatively, the noise meter can measure the sound level in fast or slow mode. 
     
    - Wide measuring range up to 130 dB
    - Analog output with 4 ... 20-mA
    - Data interface
    - LC display
    - SD card memory up to 16 GB
    - EXCEL storage
    - External microphone
    - Battery and mains operation
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    €359.90
    (Incl. Tax: €439.08)
  9. PCE Intruments PCE-SC 43 Class II sound level calibrator with different sound pressure levels

    The calibration frequency for the class II sound level calibrator is 1000 Hz and is a sinusoidal shape. Compared to other calibrators, this class II Decibel Meter Calibrator has three adjustable sound pressure levels. 94 dB, 104 dB and 114 dB are available and can be selected by pressing a button on the class II sound calibrator
     
    - Sound pressure level 94, 104, 114 db
    - For weighting filters A, B, C and D
    - Sound class 2
    - Exchangeable batteries
    - 1/2 inch microphone connection
    - 50 hours of battery life
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    €134.90
    (Incl. Tax: €164.58)
  10. PCE Intruments PCE-SC 09 Sound calibrator for mobile use - For microphones with different dimensions

    The sound calibrator is a battery powered sound source. With the sound calibrator, direct and fast calibrations of sound level meters and other systems for noise measurement can be carried out. Sound level sensors of 1, ½ and ¼ inch can be connected to the sound calibrator and checked via the adapter attachments. 
     
    - Sound pressure level 94 and 114 db
    - For weighting filters A, B, C, D
    - Ready for immediate use
    - Accuracy class 1, IEC 942
    - Easy handling
    - Adapter for various microphones
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    €495.90
    (Incl. Tax: €605.00)
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