FNIRSI FDM01 High-Precision Digital Sound Level Meter – 30–130dB Range, ±1.5dB Accuracy, Dual Sensitivity Modes

The FNIRSI FDM01 is a compact and highly accurate digital sound level meter designed for precise noise measurement across various environments. With a broad frequency range of 31.5Hz to 8.5kHz and a dynamic measuring scope of 30–130dB, this device is suitable for applications ranging from environmental noise assessments to industrial sound monitoring. Its ergonomic design, clear LCD display, and dual sensitivity modes make it an essential tool for professionals and enthusiasts alike.

🔧 Key Features

• High Precision Measurements – Accurate readings with ±1.5dB deviation for reliable sound analysis.

• Wide Frequency & Dynamic Range – Measures sound from 30dB to 130dB across 31.5Hz–8.5kHz.

• Dual Sensitivity Modes – Fast and slow response options for different environments.

• Clear LCD Display – 4-digit screen with 0.1dB resolution for easy reading.

• Integrated Light Alarm – Visual alert when sound levels exceed set limits.

• Temperature & Humidity Detection – Monitor ambient conditions along with sound levels.

• Mobile App Connectivity – Enables remote data tracking via smartphone.

• Rechargeable Battery – 600mAh lithium battery with USB Type-C charging.

📐 Specifications

• Measurement Range: 30dB to 130dB

• Accuracy: ±1.5dB

• Frequency Range: 31.5Hz to 8.5kHz

• Display: 4-digit LCD, 0.1dB resolution

• Sampling Rate: 2 times/second

• Microphone: 6mm condenser type

• Battery: 600mAh 3.7V rechargeable lithium

• Charging: USB Type-C

• Operating Temperature: 0°C to 40°C

• Storage Temperature: -10°C to 60°C

• Auto Power-Off: After 15 minutes of inactivity

• Overload Indication: Displays “OVER” or “UNDER”

📦 Package Includes

• 1 × FNIRSI FDM01 Sound Level Meter

• 1 × USB Type-C Charging Cable

• 1 × User Manual

• 1 × Protective Box

🎯 Ideal For

Sound engineers, environmental monitors, industrial professionals, and hobbyists seeking accurate noise measurement tools.