FNIRSI FDM01 High-precision Digital Noise Decibel Meter

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Applications:

Construction Site

Residential Environment

City Traffic

Workshop

Product Details

Basic Specifications:

- Model Number: FDM01

- Brand Name: FNIRSI

- Frequency range: 31.5Hz-8.5KHz

- Dynamic range: 3.50dB

- Accuracy: ±1.5dB (94dB@1KHz standard sound source)

- Measuring Range: 30-130dB

- Frequency Weighting Characteristics: A weight

- Digital Display: 4 digits, resolution 0.1dB

- Dynamic Scale Display: 1 scale represents 2dB

- Sampling Rate: 2 times/second

- Dynamic Scale Gear: 30-130dB

- Overload Indication: "OVER" and "UNDER" symbols indication

- Dynamic Characteristics: FAST (fast) and SLOW (slow) two response speeds

- Microphone: 6mm condenser microphone

- Maximum Value Lock: MAX

- Battery: 600mAh/3.7V lithium battery

- Operating Conditions: 0℃-40℃, 10%-80%RH

- Storage Conditions: -10℃-60℃, 10%-70%RH

Introduction:

Designed to meet stringent international standards, the decibel meter complies with both the International Committee IEC651TYPE2 and the American International Standard ANSIS1.4TYPE2. With a wide measuring range spanning from 30dB to 130dB, this instrument ensures precise and comprehensive noise measurement capabilities. Its impressive accuracy, reaching ±1.5dB, guarantees reliable results in various sound environments. Featuring A-weighting response characteristics, users can select between fast and slow response rates to suit their specific needs. Additionally, the meter offers the convenience of an "Automatic shutdown in 15 minutes" function, which can be easily toggled on or off as desired. With its robust features and adherence to top-notch standards, this decibel meter stands as a dependable tool for professionals and enthusiasts alike in assessing and managing noise levels effectively.

Display and Technology:

- VA color screen with backlight display

- Equipped with alarm indicator light

- Broad Frequency And Dynamic Range

- Real-Time Digital Display

- Versatile Dynamic Characteristics

Functionality and Features:

- Measurement speed switching:

- Fast mode: 1s for rapid measurement

- Low mode: 1.25s for slower measurement- Accurate Measurements

- Three measurement modes:

- MIN mode

- AVG mode

- MAX mode

- Alarm threshold setting:

- Adjustable upper and lower limit values

- Dynamic Characteristics Adaptability

- Durable And Long-Lasting

- Automatic Shutdown Feature

Detection Scenarios:

- Construction site

- Library

- Workshop production

- City traffic

- Residential environment

- Office/ meeting room

Connectivity and Power:

- Battery-powered: 600mAh/3.7V lithium battery

- Operating Conditions: 0℃-40℃, 10%-80%RH

- Storage Conditions: -10℃-60℃, 10%-70%RH

Package Contents:

- 1 Spot welding machine

- 1 Manual

- 1 USB charging cable

- 1 Packing box

Manual:

Warning Tips:

- Please do not place the device in places with high temperature and humidity for extended periods.
- Environmental noise must be within the frequency and amplitude range of the device for accurate measurement.
- When measuring outdoor noise, you can use a windproof cover on the microphone to prevent wind from directly affecting the measurement and introducing additional noise.
- Environmental conditions for use: below 200 meters altitude, relative humidity ≤ 80% RH, indoor usage within a temperature range of 0°C to 40°C.

Customer Reviews

Based on 12 reviews
75%
(9)
0%
(0)
0%
(0)
8%
(1)
17%
(2)
E
Emmet Dooley

The product does not work well and the reading is completely wrong and the seller is not cooperative. You can see the picture of the product inside the car at a speed of 90 km and the reading is 44 degrees

V
Vena McGlynn

perfectly well and well received in good condition.

E
Ethyl Vandervort

Very good sound level meter. And in addition with a very clear notice, well done, in several languages. Se which is rare when buying on Aliexpress.

N
Nellie Lang

Amazingly fast delivery, very much appreciated. Simply fantastic product from the great Company.
Dear FNIRSI team, I'm really wish you to grow up and to keep your so high levels of customer care.
Thanks and good luck !

E
Eliane Koss

it doesn't seem calibrated
at home when it's quiet I get 28 db
talking into the microphone gets me 60-64 which I think it's not that low honestly
sudden noises that are very short sometimes it doesn't pick them up which I needed it for this specifically

decibel X on iPhone seems to be more accurate and supports more sound ranges
many YT reviewrs tested Decobel X app on iPhone sna Android, and saw very good resulst compared to better more exepnsive sound meters than this one.

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