Digital sound level meter with 30-130 dB range, temperature and humidity

Description

The FNFDM02 is a portable digital sound level meter that accurately measures sound pressure levels. It covers everything from 30 dB, the rustle of a quiet room, up to 130 dB from machinery or a concert. Accuracy is ±1.5 dB on a 94 dB source at 1 kHz, with a resolution of 0.1 dB.

This way, technicians, installers and audio enthusiasts get reliable readings. What’s more, there’s no need for expensive, bulky lab equipment.

3-in-1 digital sound level meter: noise, temperature and humidity

This instrument is not just a simple decibel meter. In fact, in addition to the condenser microphone, it integrates temperature and humidity sensors. It then shows a complete picture of the environment on the same 2″ color display.

This setup is also useful in many situations. For example, it helps anyone checking noise limits at home or at work. It also helps those monitoring the storage conditions of materials and equipment.

Flexible, self-contained measurements

The HOLD function freezes the current reading on screen. The alarm log also saves up to 30 threshold-exceeded events, with date, time and type. Finally, a configurable light indicator signals the thresholds.

The 1500 mAh lithium battery is recharged via USB Type-C. Automatic sleep mode and the motion sensor also reduce power consumption. The firmware, too, can be updated by the user.

Where to use the digital sound level meter

In the field, the instrument monitors noise pollution in both residential and industrial settings. It checks noise exposure in workplaces and assists with industrial maintenance, audio system testing and acoustics education.

3-in-1 environmental analysis on a single screen

Thanks to the color display, noise, temperature and humidity readings are shown at the same time. The condenser microphone and the temperature/humidity sensor provide accurate data, making it easy to use a single instrument for multiple functions.

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Dual A/C weighting for professional measurements

A-weighting simulates the human ear and is suited to ambient and household noise. C-weighting, on the other hand, favors low frequencies, making it suitable for motors, machinery and plants. You can switch between the two with a single button.

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Real-time response: FAST and SLOW modes

A single button switches between FAST (125 ms) and SLOW (1 s). FAST captures peaks and rapid noise fluctuations. SLOW, on the other hand, provides an averaged, more stable reading of fluctuating levels.

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Curve recording: noise trends over time

Curve mode turns readings into a real-time graph, updated every half second. This makes it easy to spot peaks immediately and to track acoustic trends over time.

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Package contents

• FNFDM02 digital sound level meter
• USB Type-C charging cable
• Protective carrying case
• User manual