FDM01 Digital Sound Level Meter with A-Weighting, FAST and SLOW Responses, MAX Hold and Rechargeable Battery

The FDM01 measures sound levels from 30 to 130dB using A-weighting. Select FAST or SLOW response and read measurements on a four-digit display. A dynamic scale, MAX hold and overload indicators help track changes during a measurement session.

Key Features

• A-weighted measurements with FAST and SLOW response settings.
• Four-digit display with 0.1dB resolution and two samples per second.
• Dynamic scale with 2dB divisions and two updates per second.
• MAX hold captures the maximum reading; OVER and UNDER indicate readings beyond the display range.
• Adjustable sensitivity, dual mode switching, a light alarm and a 15-minute automatic shutdown function.
• Rechargeable 600mAh, 3.7V lithium battery. Blue and Yellow options retain their original color selection.

Specifications

• Model: FDM01; measuring range: 30-130dB; frequency range: 31.5Hz-8.5kHz.
• Specified accuracy: ±1.5dB, based on a standard 94dB sound source at 1kHz.
• Microphone: 6mm condenser; frequency weighting: A; response settings: FAST and SLOW.
• Digital resolution: 0.1dB; sampling: two times per second; dynamic scale division: 2dB.
• Battery: 600mAh, 3.7V lithium.
• Package: one noise meter, one product manual, one packing box and one charging cable.