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High-Performance Sound Level Meter
LA-7000シリーズ

The LA-7000 series sound level meter is a noise meter that significantly improves operation through the adoption of a large color LCD touch panel, allowing for easy and intuitive operation to start measurements.

In addition to measuring and calculating the original noise level, the LA-7000 series also allows for "measuring while listening to the sound" during measurement. By listening to the sound, it is possible to check the condition of the target object, explore sound sources, and confirm whether the recording was successful. This enables safe and reliable measurements in environments where mistakes are not allowed.

Moreover, by equipping options, it evolves not only as a sound level meter (noise meter) but also into a sound analyzer, frequency analysis, and sound recorder* . (*Optional)
With one LA-7000 series sound level meter, it is possible to conduct noise measurements, sound recording, frequency analysis, and sound source exploration of abnormal noises, greatly improving the efficiency of measurement tasks.

Furthermore, by combining the data saved with the LA-7000 series and our diverse analysis software, it becomes possible to perform 'waveform analysis', 'sound quality evaluation', 'fluctuating sound analysis', and 'sound frequency simulation'.

  • LA-7700 Sound Level Meter
    Class 1

    High sensitivity type
    For those measuring small sounds in anechoic chambers, etc. 

    Measurement frequency range: 10 Hz - 20 kHz
    Measurement level range (JIS, IEC) A: 20 to 128 dB
    Self-noise level A: 12 dB or less 

  • LA-7500 Sound Level Meter
    Class 1

    Wideband Type
    For those measuring from ultra-low frequency to audible range

    Measurement frequency range: 10 Hz - 20 kHz / 1 Hz to 20 kHz (when ultra-low frequency function is enabled※2)
    Measurement level range (JIS, IEC) A: 24 to 138 dB
    Self-noise level A: below 16 dB

  • LA-7200 Sound Level Meter
    Class 2

    For those who conduct high-functionality environmental sound level meter measurements

    Measurement frequency range: 10 Hz - 8 kHz
    Measurement level range (JIS, IEC) A: 23 to 138 dB
    Self-noise level A: 17 dB or less

Features

Easy to hold!

Hand strap included

Prevents the main unit from falling during measurement use.

size down

Achieved a 35% reduction in size compared to the previous model. It features a design that is friendly for those with smaller hands, pursuing ease of holding.

Easy to use!

Achieving long-duration measurement.

When using alkaline batteries, it lasts approximately 12 hours, and it is also possible to power it via USB.

Intuitive operation with a touch panel.

You can change settings such as calculation switching, range switching, and measurement time by tapping on the display.

the installation of a home key

Pressing the home key returns to the main screen.

key lock function

You can lock the keys by long-pressing the home key.

Wind Screen Correction Function

When using a windscreen for measurements, the effects of installation can be corrected.

Switch to Japanese display

Japanese/English display switch is possible.

Convenient capture function for screen capturing.

You can output the captured image.

External Power Supply ON/OFF Function

When integrating the device with an external power source to control it ON/OFF, it is possible to do so by switching.

Easy to understand!

4.3-inch color LCD

Overlay display can also be made clear. It warns of range over in red.

Starting the recording is just one tap.

Calculation data and recording are started by tapping once for automatic memory saving.

Equipped with listening function

By directing the microphone (sound level meter) towards the source of the loud sound, you can not only see the numerical values but also experience the sound while listening.

Video

promotion

feature-length

List of Functions

Standard Functions

Optional Functions

Standard Functions

SINGLE mode, DUAL mode, QUAD mode display standard features

You can display two (DUAL) or four (QUAD) calculated values simultaneously with a combination of different frequency weighting characteristics and time weighting characteristics.
It is effective for comparing measurement results of different weighting characteristics, such as the values of A characteristic and Z characteristic.

SINGLE mode MAIN
DUAL mode MAIN, SUB1
QUAD mode MAIN, SUB1, SUB2, SUB3
Example of QUAD mode display
Example of QUAD mode display

Trend screen: Displays the trend waveforms of MAIN or SUB. Only the selected value is shown. (MAIN or SUB)
※ The trend display is a combination of instantaneous values or a combination of calculated values.

List screen: Displays all calculated values (L p, L eq, L E, L max, L min, L peak, L N) during measurement for the selected MAIN or SUB.
※ To select, tap on the display of MAIN or SUB, and it will change to bold (indicating it is selected).

Listening function (Phone output) Standard function

Measurement is possible while listening to the sound.

  • Effective for measurements in anechoic chambers and remote locations.

  • Effective for monitoring remote locations due to environmental noise and other factors.

  • *Extension cable and headphones are sold separately.
    *Extension cable and headphones are sold separately.

1/1 Real-time octave analysis function Standard feature

RTA1/1 mode
RTA1/1 mode

This is one of the frequency analysis modes, displayed in octave bands. The vertical axis represents sound pressure level (loudness), while the horizontal axis represents frequency (pitch). It allows for a quick visual assessment of which pitches are louder. Additionally, it is possible to overlay the memory data from RTA1/1 with the MAIN data for comparison.

Filter1/1 mode
Filter1/1 mode

By listening to the sound through the octave band filter, it is possible to hear only the sounds of interest even in noisy environments.
It helps to point the microphone and locate the source of unwanted noise.
Additionally, you can compare the sound pressure levels of Allpass (full band) and Bandpass (specific band).

Applicable Standards IEC 61260-1:2014 Class 1 / JIS C 1513-1:2020 Class 1
analysis band 16 Hz ～ 16 kHz (11 bands), Allpass1, Allpass2
※When the ultra-low frequency function is enabled, 1 Hz ～ 16 kHz (15 bands) [list only], Allpass1, Allpass2
Calculated Items Filter Mode (Bandpass, Allpass switch) ・・・L p, L eq, L E, L max, L min, L peak, L N list
RTA Mode ・・・ L p, L eq, L E, L max, L min (Main)
measurement range Normal range (wide range is not supported)
Memory Mode Manual, Auto, Logging, Record* （ * when LA-0704 is attached ）
Overlay function RTA mode *

The Octave function includes an Overlay function, which allows for the overlaying of RTA memory data with measurement data (raw data).

Background noise correction function RTA mode *

It can be used when you want to correct for background noise at the site during noise measurement.

Background noise correction is
 the sound pressure level measured while the target device is operating, which is a composite value of the sound from the device and the background noise. Subtracting the influence of background noise from this measurement to calculate the radiated sound pressure level of the target device is called background noise correction.

Ambient noise correction function RTA mode

Points to note
It is important to obtain sufficiently stable values in the measurement of background noise levels.
In frequency bands, if the background noise data becomes larger, correction cannot be applied and it will not be displayed.

*The overlay function and background noise correction function can also be used with RTA1/3.

convenient features

calibration history function

Calibration is emphasized as an important task for verifying the performance of a sound level meter. Before measurement, an acoustic calibration (confirmation using an acoustic calibrator) is performed. In that case, having a calibration history makes management much easier.

Convenient Function 1
Convenient Function 1

You can register the recommended calibration device for the sound level meter.
Registration items: model of the calibration device, calibration level value, serial number

Convenient Function 2
Convenient Function 2

When the calibration mode is completed with OK, the calibration data is automatically saved in the built-in memory. (max about 100 times) The calibration history data can be output to an SD card. (.CSV format)
Saved items: (calibration values, adjustment VR positions, used acoustic calibrators/internal reference signals, calibration date and time)
*It is necessary to register and select the calibrator to be used.

Option

1/3 Real-time octave analysis function LA-0702 Option

It is possible to analyze and evaluate sounds that are further divided into octave bands.
It is also possible to listen to sounds through a 1/3 octave band filter. The analysis functions and filters are the most commonly used in sound.

RTA1/3 mode

RTA1/3 mode

This is one of the frequency analysis modes, displayed in octave bands. The vertical axis represents sound pressure level (loudness), and the horizontal axis represents frequency (pitch). You can easily see which pitch is louder at a glance. Additionally, you can overlay the RTA1/3 memory data with the MAIN data for comparison.

Filter1/3 mode

Filter1/3 mode

By listening to the sound through the octave band filter, it is possible to hear only the sounds of interest even in noisy environments.
It helps to point the microphone and locate the source of unwanted noise.
Additionally, you can compare the sound pressure levels of Allpass (full band) and Bandpass (specific band).

Specification

analysis band

12.5 Hz ～ 20 kHz (33 bands), Allpass1, Allpass2

*When the ultra-low frequency function is enabled, 0.8 Hz to 16 kHz (45 bands) [list only], Allpass1, Allpass2.
Applicable Standards Please refer to it as it is similar to octave mode.
Calculated Items
measurement range
Memory Mode

FFT analysis function LA-0703 option

FFT analysis allows you to check the amplitude of sound for each frequency component.
It is also possible to perform calculations on average results and to trigger and capture single sounds.

  • FFT analysis function LA-0703

  • Supports auto memory
    → Automatic saving of numerical data is possible

  • Compatible with record memory (*LA-0704 required)
    → FFT analysis possible while recording

  • Improvement of resolution capability supporting 800 lines and 1600 lines.

Specification

frequency range 1 kHz, 2.5 kHz, 5 kHz, 12.5 kHz, 25 kHz
Number of lines (sampling points) 400(1024)、800(2048)、1600(4096)
trigger ON/OFF count (1 to 16 times) / Level (40.0 to 130 dB), Position (fixed at -64 points)
Average Mode SUM, MAX, hold, EXP (exponential)
measurement range Normal range (wide range is not supported)
Compatible memory Manual, Auto, Logging, Record
Expand ×1、×2、×4

*The trigger level (30.0 to 120.0 dB) for the LA-7700.

Sound recording feature LA-0704 Option

Sound Recording Function LA-0704

You can record audio data and listen to the recorded sound using the sound level meter. The recorded files can be analyzed offline with O-Solution.

Specification

Memory Mode Record
sampling frequency 64 kHz
recording time When using 16 bit (4 GB about 8 hours)
When using 24 bit (4 GB about 5.5 hours)
recording range Normal range
(Wide range with 16bit setting is not supported)
file format wav (audio data) and
csv (playback trend data: L z at 1 s intervals)
※ Simultaneous recording of analysis in RTA and FFT modes is also possible

(Note) When loading with OS-2000 series, up to 2 GB.
Please record within the following times.
Recording time:
When using 16 bit (2 GB 4.5 hours)
When using 24 bit (2 GB 3 hours)

Offline analysis feature LA-0704 Options

In measurement sites, there are increasing cases where you cannot take your time slowly. With the offline analysis function, it is possible to record sounds and analyze them later.
With the offline analysis function, "re-calculation" and "re-analysis" (such as FFT, RTA) of Leq and others are possible. * Further detailed analysis is also available with secondary processing software and more.

  • Offline Analysis Function LA-0704

Specification

  • SLM (Single/Dual/Quad mode)

  • RTA1/1, Filter1/1 mode

  • RTA1/3, Filter1/3 mode ... LA-0702 required

  • FFT mode ・・・ LA-0703 necessary

* Note) The trigger function cannot be used.
* Note) The time setting is only for MeasureTime.
* L-SIM (LA-0707) and SQE steady sound (LA-0708A) are supported from Ver4.0 onwards.

Level judgment function LA-0705 Option

Output cable (MULTI I/O - BNC connector) included, 2 m long.

  • When not exceeding the set value (green) / *In the case of OFF setting (gray)
    When the set value is not exceeded (green) / In the case of OFF setting (gray)
  • When the set value is exceeded (red color)
    When the set value is exceeded (red color)

Specification

comparison target SLM mode (SINGLE/DUAL/QUAD)
Main L p instantaneous value
Filter 1/1,1/3 (BP: L p), RTA1/1,1/3 (AP1: L p), FFT (OA: Inst)
(calculated values not supported)
Setting level 30.0 dB to 130.0 dB
DELAY settings OFF, 10 ms, 100 ms, 1 s, 2 s, 3 s, 5 s, 10 s
HOLD setting 100 ms, 200 ms, 500 ms, 1 s, 5 s, 10 s, 30 s, Manual
output mode OFF, ON (Mode1 LOW), ON (Mode2 HI-z)

Level Simulator Function LA-0707 Options

You can lower the level of the problematic frequency band and listen to the sound after the measures (virtual sound) to determine its overall value. This is effective for simulating the effects of the measures by comparing it with the sound before the measures (original sound).

  • Level Simulator Function LA-0707 No.1
  • Level Simulator Function LA-0707 No.2
  • Level Simulator Function LA-0707 No.3

Specification

Measurement Mode L SIM
Switch Display (Phone Mark) UD (simulatable) or AP (original sound)
Adjustment range -50 dB to +20 dB (1 dB step)
Variable level support 16 Hz to 16 kHz (11 bands)
display band 11 band, Overall, Allpass (thru)
bulk editing function 0 dB (for reset), -50 dB (full cut), display when UD settings are applied.
MAIN Overall value (calculated value that has increased or decreased)
List Display The amount of editing per band, as well as the figures after increase or decrease.
Output of UD settings Phone terminal
Headphone output Overall (Virtual Sound) Output
AC output Overall Output (Output of UD Settings)
AC/DC output Select one from the following
DC output: Overall output (output of UD settings)
AC-Z output: Z output (Z characteristics of the original sound)
Through output: Microphone output (output of the leveled original sound)

Sound Quality Evaluation Function LA-0708A Option

In noise level evaluations, there are cases where the results differ from human hearing. In such cases, sound quality evaluations such as loudness values can be a very effective means.
Loudness is effective for evaluating the volume of sound as perceived by humans.
Sharpness is effective for looking at metallic, high-pitched, unpleasant sound components.

The CI value* is a value that takes into account the time-averaged sound level and sharpness. It is simple and effective for applications involving environmental noise and mechanical sounds (dental drills). (Further studies are being conducted regarding the scope of application in the future.)
The LA-0708A sound quality evaluation function is intended for steady sounds. For non-steady sound loudness, please use the sound quality evaluation software of the OS-2000 series.

  • Audio Quality Evaluation Function LA-0708A No.1
  • Audio Quality Evaluation Function LA-0708A No.2

Specification

Scope of use Selection of Steady Sound: Diffuse Sound Field (GD) and Free Sound Field (GF)
calculation list
Loudness (ISO 532-1 steady sound conformity) "N"
Loudness level "LN"
Sharpness (compliant with DIN45692) "S"
Sharpness (Aures) "SA"
Sharpness (Bismarck) "SB"
Comfort Index* "CI"
simultaneous measurement Main One from the above list of operations.
SUB1/SUB2/SUB3 One from each SLM value (the frequency-weighted characteristic of SUB1 is fixed at A).
measurement range normal range

* The LA-7200 (Class 2) cannot be mounted.
* CI (Comfort Index) is one of the sound evaluation metrics based on the research of Professor Sonoko Kuwano.* CI is the sum of the "sharpness value" and "1/10 of the A-weighted time-averaged sound level." There are correlations with environmental noise and mechanical noise, and it is considered effective as a measure of unpleasant sounds. The scope of application is still under review, so please use it as a reference value.

Sonoko Kuwano* (Ph.D. in Engineering) Emeritus Professor of Osaka University, President of the Acoustical Society of Japan, Vice President of the Japan Society of Noise Control Engineering, and Vice President of the International Commission on Acoustics, among other positions.

Ultra Low Frequency Sound Measurement Function LA-0709 Option

It is also possible to measure infrasound (1 to 20 Hz) that is inaudible to the human ear.

Measurement Frequency Range 1 Hz to 20 kHz
(Measurement mode switching allows for measurement of either 10 Hz to 20 kHz or 1 Hz to 20 kHz)
Frequency weighting characteristic Selectable G characteristics
Time weighting characteristic 10 seconds selectable
Applicable Standards ISO7196:1995 Acoustics - Frequency-weighting characteristic for infrasound measurements
Response mode SLM-Single, Dual, Quad, Filter1/1, RTA1/1, Filter1/3 (LA-0702), RTA1/3 (LA-0702), FFT (LA-0703)

* Can only be installed on the LA-7500. Additionally, if you wish to attach it to a purchased LA-7500, a retrieval service will be provided.

interface

There is a link for details.

interface

Accessories

  • Accessory No.1
  • Accessory No.2

Specification

  LA-7700 Class 1 LA-7500 Class 1 LA-7200 Class 2
Measurement Law Type Approval Number ※1 No. TF2210
No. TF228		 No. TF229
No. TF227		 No. TS225
No. TS224
Applicable Standards JIS C 1509-1: 2017 Class 1
JIS C 1516: 2020 Class 1		 JIS C 1509-1: 2017 Class 2
JIS C 1516: 2020 Class 2
IEC 61672-1:2013 Class 1 IEC 61672-1:2013 Class 2
ANSI S1.4-2014/Part1 Class1 ANSI S1.4-2014/Part1 Class2
Measurement Frequency Range 10 Hz～20 kHz 10 Hz to 20 kHz
1Hz to 20kHz (when ultra-low frequency function is enabled ※2)		 10 Hz～8 kHz
Measurement Level Range (JIS, IEC) A: 20–128 dB
C: 28–128 dB
Z: 34–128 dB		 A: 24～138 dB
C: 32～138 dB
Z: 38～138 dB
Z: 50～138 dB (when ultra-low frequency function is enabled)
G: 35～138 dB (when ultra-low frequency function is enabled)		 A: 23～138 dB
C: 30～138 dB
Z: 36～138 dB
Self-Noise Level A: Below 12 dB
C: Below 20 dB
Z: Below 26 dB		 A: Below 16 dB
C: Below 24 dB
Z: Below 30 dB
G: Below 27 dB (when ultra-low frequency function is enabled)		 A: Below 17 dB
C: Below 24 dB
Z: Below 30 dB
Microphone MI-1281 MI-1271 MI-1471
micro home preamplifier MI-3270
linearity range Wide Range: 110 dB / Normal Range: 80 dB
level range 10 to 120 dB (wide)/50 to 120 dB/40 to 110 dB/
30 to 100 dB/20 to 90 dB/10 to 80 dB/0 to 70 dB		 20 to 130 dB (wide)/60 to 130 dB/50 to 120 dB/
40 to 110 dB/30 to 100 dB/20 to 90 dB/10 to 80 dB
reference range 50 to 120 dB
Time weighting characteristics Example: LAF F (fast), S (slow), I (impulse), 10 ms F (fast), S (slow), I (impulse), 10 ms, 10 s (when ultra-low frequency function is enabled) F (fast), S (slow), I (impulse), 10 ms
Frequency weighting characteristics Example: LAF Characteristics of A, C, Z A, C, Z G characteristics (when ultra-low frequency function is enabled) Characteristics of A, C, Z
Measurement items L p, L eq, L E, L max, L min L peak,
L N (L 5, L 10, L 50, L 90, L 95, L high, L low, L ave. Any 2 LN values)
sampling interval 15.6 μs (L p, L eq, L E, L max, L min, L peak), 100 ms (L N)
measurement time Example: If measuring every 10 minutes at each hour for 24 hours,
M.T: 10 min, P.T: 1h, T.T: 24h.
  Measurement Time Manual (OFF), arbitrary setting from 0.1 to 199 hours 59 minutes 59.9 seconds, resolution: 0.1 seconds.
Period Time From 1 minute to 24 hours, resolution: 1 minute
Total Time From 0.1 seconds to 999 hours, 59 minutes, and 59.9 seconds; resolution: 0.1 seconds.
Start Type (Start Mode) Manual Start, Timer Start, Countdown Start, Level Start
Display Function Display Device 4.3-inch LCD display with color backlight (touch panel compatible)
  digital display 4 digits / resolution 0.1 dB / display cycle 1 s
bar indicator Wide range: display range 100 dB / Normal range: display range 70 dB
Battery level display 4-stage display
Operate Mode Online mode

Standard: SLM-Single, Dual, Quad, Filter1/1, RTA1/1

Options: Filter1/3 (LA-0702), RTA1/3 (LA-0702), FFT (LA-0703), LSIM (LA-0707), SQE Steady Sound (LA-0708A)

Standard: SLM-Single, Dual, Quad, Filter1/1, RTA1/1

Options: Filter1/3(LA-0702), RTA1/3(LA-0702), FFT(LA-0703), LSIM(LA-0707)
※ "SQE Steady Sound (LA-0708A)" option not available.
Offline Mode
(LA-0704 Required)

Standard: SLM-Single, Dual, Quad, Filter1/1, RTA1/1
Options: Filter1/3 (LA-0702), RTA1/3 (LA-0702), FFT (LA-0703)
※ LSIM (LA-0707), SQE steady sound (LA-0708A) will be supported from Ver4.0 onwards.
Overlay Display
(Overlay)		 Overlapping Writing Display Standard: RTA1/1
Option: RTA1/3 (LA-0702)
Ambient Noise Correction Display Standard: RTA1/1
Option: RTA1/3 (LA-0702)
memory function Stored on SD/SDHC card (SDHC card up to 32 GB can be used)
  Memory Mode MANUAL (CSV file), AUTO (instantaneous value, calculated value, CSV file)………standard function
LOGGING (instantaneous value 10 ms or 100 ms, CSV file)………standard function
RECORD (WAVE file: 64 kHz sampling)………LA-0704 required
Panel Condition Memory Built-in memory and SD/SDHC card
(Internal memory: 5 rewritable items, 5 EZ conditions, 1 condition when power is off)
(SD/SDHC: The number depends on the capacity of the SD/SDHC card)
Simple Measurement Mode 5 modes
(EZ1:L Aeq +L Cpeak, EZ2:Record, EZ3:Logging 100 ms, EZ4:NC, EZ5)
clock function Built-in (year/month/day/hour:minute)
Continuous operating time: approximately 1 year (charging time: 24 hours from full discharge)
calibration history function Built-in memory (number of saved points: approximately 100)
Contents (calibration values, adjustment VR position, used acoustic calibrator/internal reference signal, calibration date and time)
resume function Save measurement conditions to internal memory.
Calibration Reference Signal
(Output for external device connection)		 Electrical calibration by internal transmitter (1 kHz sine wave)
Normal range: -6 dB full scale, wide range -16 dB full scale
Recommended calibration Container SC-2600, SC-2500A SC-2600, SC-2500A, SC-2120A
Output/Input Phone output
(Headphone output)		 Actual sound or recorded sound (playback sound) 1/1 octave filter (standard feature),
when using 1/3 octave filter mode (option: LA-0702),
the selected 1 band of actual sound or recorded sound (playback sound).
When "UD" is selected on the level simulator (LSIM: LA-0707), it is level editing sound,
when "AP" is selected, it is actual sound.
Maximum output: 10 mW (63 Ω: at 1 kHz), connector: stereo ⌀3.5.
AC output Output either A, C, or Z linked to the main screen.
  AC output level Output level: 0.707 Vrms±5 % (normal range), 2.236 Vrms±5 % (wide range)
Range full scale input, 1 MΩ load
Distortion (range full scale): less than 0.2 %,
Load resistance: 10 kΩ or more,
Offset voltage: within ±30 mV,
Output impedance: 50 Ω±2 %
AC/DC output Switching between DC, AC-Z, and Through
  DC output level 2.5 V±20 mV (normal range, wide range) range full-scale input, 1 MΩ load
Scale factor: 0.25 V±10 mV/10 dB,
Load resistance: 10 kΩ or more,
Output impedance: 50 Ω±2 %
AC-Z Output Level Output level: 0.707 Vrms 5 % (normal range), 2.236 Vrms ±5 % (wide range)
Range full scale input, 1 MΩ load,
Distortion (range full scale): less than 0.2 %,
Load resistance: 10 kΩ or more,
Offset voltage: within ±30 mV
Output impedance: 50 Ω ±2 %
Through output level

0.707 Vrms± 5 % (normal range, wide range) full scale input, 1 MΩ load
Distortion: within 0.2 % output
External control input
action Reset and start
Control voltage Voltage-free contact input
Input pulse width more than 200 ms
Absolute Maximum Input Voltage 24.0 V
Level Judgment Output (LA-0705) Open collector (output voltage: DC +24 V or less, sink current: 20 mA or less)
"Output cable (MULTI I/O - BNC connector 2 m) included"
  Level Assessment Comparison Target SLM mode (Main: L p), Filter 1/1, 1/3 (Main(BP): L p), RTA 1/1, 1/3 (AP1: L p), FFT (OVERALL: Instant)
Interface RS-232C Transfer speed: 9600, 115200 bps, MULTI I/O cable (sold separately)
USB
Ver2.0 USB High-Speed compliant
USB connection cable USB (A) Male - Micro USB (B) Male (sold separately)
Function Command control, or mass storage ※3
external memory SD/SDHC memory card, maximum capacity SDHC 32 GB ※4
Compatible extension cable
(Microphone extension) ※5		 AG-3400 series (CE compliant within 30 m), maximum extension: 103 m (AG-3305),
cable extensions over 5 m have correction functionality.
Power Supply - Four AA batteries (alkaline or Ni-MH rechargeable)
- USB bus power (operating input voltage range: DC 4.75 to 5.25 V)
- AC adapter (PB-7090 power consumption at AC 100 V, approximately 7 VA)
External power supply operation function A function that operates the device's power in conjunction with the power supply from the AC adapter. (The external power activation mode does not operate on battery power.) It can be switched using a switch in the battery box (standard feature).
Windproof Screen Correction Function The windscreen "Wind Screen (⌀70) / All-Weather Wind Screen (LA-0207A)" has a function to correct its effects. (The LA-7700 does not support the all-weather wind screen.)
Battery life (continuous use) ※6 Alkaline dry battery LR6: approximately 12 hours, Ni-MH rechargeable battery: approximately 12 hours.
Operating (Storage) Temperature Range -10 to 50 ºC (-20 to 60 ºC)
Use (Save) Humidity Range 20% to 90% RH (10% to 90% RH); provided that there is no condensation.
Size Approximately 90 mm (W) × 279 mm (H) × 42 mm (D)
Weight Approximately 540 g (including battery)
Accessories AC adapter (PB-7090)※7
Signal cable (AX-501)
Windshield (⌀70 mm)
Hand strap, 4 AA alkaline batteries
Carrying case (including shoulder strap)
SDHC memory card (16G)
Instruction manual (CD version)
Setup guide
Price (including tax)
 
 
 
Shipping inspection fee ※8
 
 
 

Measurement Law (Enacted in 2021)

*2 LA-0709 Corresponds with ultra-low frequency sound measurement function.

*3 Supported from firmware version 2.0 onwards.

When using the SD memory function, please use the recommended SD card.

The cable extension distances listed here apply only when using the company's designated special cables.

Usage time varies depending on the operation mode, memory mode, and backlight.

*7 Please inquire separately about the overseas version of the power cable.

*8 As a general rule, we replace the certification conducted at the time of shipment with a "Standard Compliance Certification Mark" through self-inspection.
For products after shipment, we request inspection from the Japan Quality Assurance Organization (JQA) after conducting checks and adjustments at our company (General sound level meter: ¥15,300 (tax-exempt) + ¥22,900 (excluding tax) Precision sound level meter: ¥23,000 (tax-exempt) + ¥35,400 (excluding tax)). Additionally, since we standardize products without certification, customers who wish to have products with certification (Standard Compliance Certification Mark) and those who wish for inspection by public institutions from the time of shipment should inform us of this at the time of product order.

option price

Model name Product Name Price (including tax)
LA-0702 1/3 Real-time Octave Analysis Function  
LA-0703 FFT analysis function  
LA-0704 sound recording function  
LA-0705 Level assessment function  
LA-0707 Level Simulator  
LA-0708A Sound Quality Evaluation Function  
LA-0709 ultra-low frequency sound measurement function  

Related products

Audio calibration (SC-2600 / SC-2500A / SC-2120A)

  • Audio calibration (SC-2600 / SC-2500A / SC-2120A)

LA-7200 (Class 2) is compatible with SC-2120A, SC-2500A, SC-2600.
For LA-7500 (Class 1)/LA-7700 (Class 1), please use SC-2500A, SC-2600.

LA-0207A All-Weather Windproof Screen

LA-0207A All-Weather Windproof Screen

By using an all-weather windscreen, you can reduce wind noise during outdoor noise measurements and prevent damage to the microphone from rain or snow. Please set the extension cable correction function on the LA-7000 main unit before use.

Screen diameter: ⌀ 200 mm
Mounting screw section: 1/4-20 UNS depth 6 (for camera tripod screws)

* Complies with JIS C 1509-1:2017/ IEC 61672-1:2013 when LA-0207A is attached.
* Consumable parts (wind screen, waterproof mesh) need to be replaced regularly.
* Cannot be attached to LA-7700 (Class 1).

AG-3400 Series Microphone Extension Cable

  • AG-3400 Series Microphone Extension Cable
    MI-0301 with holder

You can disconnect the microphone section from the main unit and use a dedicated microphone extension cable for long-distance extension.
※ Please set the extension cable correction function of LA-7000 before use.

  • AG-3401 Microphone Extension Cable (5 m):

     

  • AG-3402 Microphone Extension Cable (10 m):

     

  • AG-3403 Microphone Extension Cable (20 m):

     

  • AG-3404 Microphone Extension Cable (30 m):

     

Recommended USB cable (item code PE19B2458*)

Recommended USB cable (item code PE19B2458*)

U2C-AMBF2U12BK ELECOM
Micro-USB (A-microB) cable 2A output compatible (1.2 m) with ferrite core
USB (A) USB (microB) (sound level meter side)
*Our internal code

MULTI I/O cable (Item Code PE3534088)

MULTI I/O cable (item code PE3534088*)

Used for RS-232C interface. (2 m)
Serial port side (D-sub 9 pin) MULTI/IO (sound level meter side)

*Our internal code

Sound and Vibration Analysis System O-Solution/DS-5000

Detailed analysis by analysis mode.

Detailed analysis by analysis mode.

By importing data recorded with the LA-7000 series (+LA-0704) in wav format into O-Solution, you can play back sound, perform frequency analysis, and conduct octave analysis on your PC.
Additionally, by using an IIR filter (optional), it is also possible to listen to the sound after filtering while playing back the recorded sound.

as a signal input source for the DS-5000

as a signal input source for the DS-5000

Instead of using a microphone, you can perform real-time analysis by inputting the analog output of the LA-7000 series into the DS-5000. The LA-7000 series can output two types of signals simultaneously: one with acoustic filters (such as type A characteristics) and a flat signal (type Z characteristics), allowing for simultaneous analysis by the DS-5000.

　
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Time Series Data Analysis O-Solution

Sound Quality Evaluation Function OS-0525

Sound Quality Evaluation Function OS-0525

The OS-0525 sound quality evaluation function allows for the assessment of various sound quality metrics that correspond to different auditory sensations, taking into account human hearing characteristics, such as 'loudness', 'sharpness', 'roughness', 'variability strength', and 'tonality'.

　
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Fluctuating Sound Analysis Function OS-0526

Fluctuating Sound Analysis Function OS-0526

The fluctuation sound analysis function OS-0526 can extract only the significant components of time variation that are not affected by level, allowing for the quantification of various characteristics of time-varying sounds that were difficult to detect in terms of roughness or fluctuation intensity. It also includes a feature to compare sounds with fluctuations to those without (fluctuation sound simulator).

　
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Time-Frequency Analysis Function OS-0527

Time-Frequency Analysis Function OS-0527

FFT analysis can evaluate transient phenomena that are difficult to capture. It can clearly display the time variation of frequency components while maintaining frequency resolution. It is equipped with short-time Fourier transform and wavelet transform.

　
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Calibration

To ensure the accuracy of the values measured by the measuring instrument, it is necessary to calibrate the instrument at appropriate intervals. Only by using a calibrated instrument can the reliability and stability of the obtained measurement values be enhanced. High-performance sound level meters have three calibration services: ASNITE calibration, JCSS calibration, and general calibration.

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最終更新日:2026/1/14