The Duratool D03130 is a digital sound level meter designed for measuring environmental and mechanical noise levels. Here are its key specifications and features:

Technical Specifications

• Measurement Range:
  • A-weighted: 30–130 dB
  • C-weighted: 35–130 dB
• Frequency Response: 30 Hz to 8 kHz
• Weighting Characteristics: A and C
• Accuracy: ±1.5 dB
• Dynamic Characteristics:
  • FAST: 125 ms
  • SLOW: 1 second
• Microphone: Polarized capacitive microphone

 Display & Interface

• Digital Display: 4-digit LCD with 0.1 dB resolution
• Bar Graph Display: Analog bar with 1 dB increments, 20 samples/sec
• Sampling Rate: 2 samples/sec for digital display

Functional Features

• Measurement Ranges (6 gear levels):
  • 30–80 dB
  • 40–90 dB
  • 50–100 dB
  • 60–110 dB
  • 70–120 dB
  • 80–130 dB
• Auto Range Selection: Microprocessor automatically selects optimal range
• Fast/Slow Time Weighting: Selectable
• Data Hold: Yes
• Backlight: Yes