FNIRSI FDM01 Digital Noise Meter Handheld 30 To 130 dB

Measure noise with precision using the FNIRSI FDM01 Digital Noise Meter handheld. This compact device covers 30-130 dB with a 4-digit display (0.1 dB resolution) and A-weighted response to reflect human hearing. It’s ideal for monitoring noise in workplaces, construction zones, living spaces, and public squares, helping you identify harmful levels and take action to protect health and meet regulations. The FDM01 features FAST and SLOW response modes, a 2 samples-per-second rate, and a 6 mm condenser microphone for reliable, real-time readings. Built-in battery power (600 mAh / 3.7V Li-ion) keeps you moving without frequent recharges, and the device is CE-certified for quality assurance. The MAX value lock lets you capture peak noise, while clear overload indicators alert you to readings outside the range. Originating in Mainland China, the FNIRSI FDM01 provides dependable noise measurement for professionals and enthusiasts alike.

Benefits & Tips

• Use in workplaces, construction sites, and public spaces to verify noise levels and document compliance.
• Toggle FAST for rapidly changing noise or SLOW for steady environments; switch MAX to lock peak levels.
• Take readings across 31.5 Hz–8.5 kHz with A-weighting to reflect how people perceive loudness.

Product specifications

• Model: FDM01
• Measurement range: 30 - 130 dB
• Display: 4-digit digital display, 0.1 dB resolution
• Accuracy: ±1.5 dB (Based on standard sound source, 94dB @ 1KHz)
• Frequency range: 31.5 Hz - 8.5 kHz
• Frequency weighting: A-weighted
• Dynamic characteristics: FAST (fast) and SLOW (slow)
• Dynamic range: 30-130 dB
• Dynamic scale display: 1 scale represents 2 dB
• Sampling rate: 2 times/second
• Microphone: 6 mm condenser
• Battery: 600 mAh / 3.7V Li-ion (Battery Included: Yes)
• Certification: CE
• Origin: Mainland China
• Storage temperature & humidity: -10℃ to 60℃, 10%-70% RH
• Working temperature & humidity: 0℃ to 40℃, 10%-80% RH
• Overload indication: "OVER" and "UNDER"

Package includes:

• FNIRSI FDM01 Digital Noise Meter handheld
• 1 x 600mAh / 3.7V lithium battery

Warnings/Reminders

• Store and operate within the specified temperature and humidity ranges: storage -10℃ to 60℃ with 10%-70% RH; operation 0℃ to 40℃ with 10%-80% RH.
• Observe overload indicators (OVER/UNDER) to ensure readings stay within the meter’s range.

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