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Sound Level Meters

Sound Level Meter, Class 1 (with low-freq. sound) NL-62


  • Sound Level Meter (Class 1) with Low-Frequency sound (from 1 to 20 000 Hz) measurement.
  • large color LCD screen (3-inch)
  • No paper manual is needed (Help function)
  • Water-resistant (IP54; except for the microphone)
  • Use of rechargeable batteries (or dry alkaline batteries)
  • Supports long-term measurements (up to about 1 month)
  • Option: Octave, 1/3 octave real-time analysis program (NX-62RT), FFT analysis program (NX-42FT) and Data management software (AS-60/AS-60RT).

Sound Level Meter, Class 2 NL-42


  • Extremely User Friendly
    Rion's NL-52 and NL-42 sound level meters provide full support for the measurement process.
  • No paper manual is needed
  • Water-resistant (Except for the microphone)
  • Use of rechargeable batteries
  • Continuous detailed measurements for one month
  • Functionality can be extended by a range of options

Sound Level Meter, Class 1 NL-52


  • Extremely User Friendly
    Rion's NL-52 and NL-42 sound level meters provide full support for the measurement process.
  • No paper manual is needed
  • Water-resistant (Except for the microphone)
  • Use of rechargeable batteries
  • Continuous detailed measurements for one month
  • Functionality can be extended by a range of options

Sound Level Meter, Class 2 NL-27


  • Ultra compact and lightweight; fits into a pocket.
  • Wide linearity range; from 30 to 130 dB without range switching.
  • Quick start up and easy operation to measure Lp, Leq, Lmax, LE and LCpeak.
  • Frequency range: from 20 Hz to 8 kHz
  • Frequency weighting: A and C

Sound Level Meter, Class 1 (and 1/3 octave band real-time analyzer) - NA-28


  • Simultaneous real-time octave band and 1/3 octave band frequency analysys.
  • The top of the Rion range of sound level meters and analyzers for acoustical experts and specialists.
  • Option: Building acoustic card (NX-28BA), FFT analysis card (NX-28FT) and Waveform recording card (NX-28WR).

Environmental Sound Monitor(NX-37A For Environmental Measurement) - NA-37


  • The NA-37 is capable of determining the sound source position based on sound arrival direction.
  • Compact dimensions make the unit suitable also for use in mobile monitoring systems.
  • Measurement is fully automatic, and continuous 365-day all-weather operation is supported.

Environmental noise monitor NA-39A


  • All required functions for aircraft noise measurement combined in a single system
  • The noise arrival direction identification function added the real time 1/3 octave band analysis improves the accuracy of aircraft noise.
  • Compact and lightweight design facilitates installation.
  • Power consumption reduced by about fifty percent.
  • Compared to predecessor NA-37

Sound Level Meter Unit UN-14


  • Build flexible measurement systems for simultaneous measurement of sound and vibration.
  • UN-14 and UV-15 (Vibraiton Meter Unit) can be linked in a measurement system with up to 16 channels.
  • Backlit LCD and LED warning indicators.
  • Rack mount capability for shop floor or laboratory installations. (JIS compliant rack CF-27 available as option)
  • Option: Battery Pack Unit (BP-17), Interface unit (UV-22)

Measuring Amplifier NA-42


  • For a wide range of high-precision acoustic measurements.
  • Supports connection of several microphones useable: UC-53A, UC-52, UC-34P, UC-29, UC-27, UC-31 with suitable preamplifiers and cables.
  • Frequency weighting: A, C, FLAT
  • Time weighting: F (Fast), S (Slow), I (Impulse)
  • Frequency range: 1 Hz to 100 kHz (main unit characteristics)

Sound Level Meter, Class 1 NA-83


  • Easily configure a measurement system suited to your needs,
  • with support communication interface and special functions for long-term noise monitoring.

Vibration Meters


Tri-axial Groundborne Vibration Meter - VM-56


  • Simultaneous PPV, VDV,Dominant Frequency & Displacement
  • The VM-56 is a groundborne vibration meter capable of simultaneously calculating the measurement quantities defined by DIN 45669-1, ISO 8041 and other national measurement standards. Like other Rion products, it is characterized by excellent build-quality and exceptional ease of use. It is suitable for a wide range of applications including attended measurements, unattended surveys and live-to-web monitoring.

Vibration Analysis Program - SX-A1VA


  • This program adds vibration measurement functions to the RIONOTE Multifunction Measurement System.
  • All essential vibration measurement functions are provided, enabling equipment diagnosis and trend management for industrial machinery.
  • The program also supports detailed diagnosis including FFT analysis and envelope processing, and ISO absolute value evaluation can also be performed. Because up to four accelerometers can be connected to the RIONOTE, simultaneous measurement in two horizontal directions and one vertical direction or other measurements of multiple planes can be easily realized.

Vibration Analyzer VA-12


  • Portable vibration analyzer for equipment diagnosis and on-site measurements.
    Vibration meter with FFT analysis function.
  • Vibration meter mode: Allows simultaneous measurement of acceleration, velocity, displacement, and acceleration crest factor.
  • FFT analyzer mode: Real-time analysis frequency 20 kHz, 3 200 spectral lines and available Envelope processing.
  • Waveform data storing on SD card for post process/analysis.
  • Option: Waveform analysis software, Comparator software

Vibration Meter Unit UV-15


  • Flexible unit configuration allows simultaneous sound and vibration measurement.
  • UV-15 and UN-14 (Sound Level Meter Unit) can be linked in a measurement system with up to 16 channels.
  • Display shows parameters, measurement value, and bar graph indication.
  • Rack mount capability for shop floor or laboratory installations. (JIS compliant rack CF-27 available as option)
  • Option: Battery Pack Unit (BP-17), Interface unit (UV-22)

2-Channel Charge Amplifier UV-16


  • The UV-16 is a 2-channel charge amplifier that is compatible with the input of piezoelectric accelerometers and accelerometers with built-in preamplifier.
  • A multi-channel charge amplifier can be configured by coupling together a maximum of 16 units (32 channels).
  • Power: Optional AC adapter or Battery Unit (BP-17).

Vibration Level Meter - VM-55


  • Vibration Level Meter compliant with the Japan Measurement Act and JIS C 1510: 1995 and JIS C 1517: 2014.
  • Simultaneous measurement of Lv and Lva
  • Extended function program cards
  • 27 hours of measurement with IEC R6(size AA)
  • Dust and water proofing IP54

3-Axis Vibration Meter VM-54


  • VM-54 is designed for various vibration measurements with tri-axial accelerometer. Optional program cards (VX-54 series) help you make human-related vibration measurements.

Pocketable Vibration Meter(Riovibro) VM-63C


  • Pocket-size vibration meter with integrated accelerometer.
  • Designed for quick and easy use in the field.
  • Suitable for preventive maintenance of industrial equipment, on-site quality control, product development, etc.

General-Purpose Vibration Meter VM-82A


  • Three measurement modes:acceleration, velocity and displacement Internal memory stores up to 1 000 data
  • The general-purpose vibration meter VM-82A is designed mainly for maintenance and inspection of industrial machinery, with particular emphasis on rotational machinery. Acceleration, velocity, and displacement can be easily measured using a suitable frequency range, allowing comprehensive and precise evaluation of machine vibrations.

General-purpose Vibration Meter VM-83


  • Measure and evaluate vibrations using a piezoelectric accelerometer or the Servo accelerometer LS-10C.
  • Display characteristics can be switched to rms, equivalent peak and equivalent peak-to-peak, with maximum value hold and peak hold.
  • Connectivity for various kinds of accelerometers enables a wide range of vibration measurements.
  • Comparator function with level evaluation output.