Digital Sound Level Meter Extech 407730

Extech 407730 Sound Level Meter for Accurate Noise Level Measurements

Monitor Environmental Noise with Professional Accuracy and Easy Operation

The Extech 407730 Sound Level Meter measures sound pressure levels from 40 to 130 dB with an accuracy of ±2 dB. Its digital display provides 0.1 dB resolution and features a fast-response analog bar graph for real-time monitoring. Users can select either A or C frequency weighting to suit different measurement applications. The Max Hold function captures the highest reading, making it ideal for environmental, industrial, HVAC, occupational safety, and laboratory noise assessments. The meter includes a microphone windscreen and four AAA batteries for immediate operation.

Key Features

• Measures sound pressure levels from 40 to 130 dB with ±2 dB accuracy.
• Digital display with 0.1 dB resolution for precise readings.
• Fast-response analog bar graph for real-time sound monitoring.
• Selectable A and C frequency weighting for multiple applications.
• Max Hold function captures the highest measured value.
• High-quality 12.7 mm (0.5 in) condenser microphone.
• AC analog output for external recording or analysis.
• Selectable Fast or Slow response times.
• Includes microphone windscreen to reduce wind interference.
• Powered by four 1.5 V AAA batteries.
• CE certified for safety and quality compliance.

• Specifications
• In the Box
• Documents

• Microphone	12.7 mm (0.5 in) Condenser
  Frequency Weighting	A, C
  Basic Accuracy	±2 dB
  Measurement Range	40 to 130 dB
  Maximum Resolution	0.1 dB
  Analog Output	AC
  Response Time	Fast / Slow
  Power Supply	4 × 1.5 V AAA Batteries
  Certifications	CE
  Dimensions	230 × 57 × 44 mm (9 × 2.2 × 1.7 in)
  Weight	160 g (5.6 oz)

• • 1× Extech 407730 Sound Level Meter
  • 1× Microphone Windscreen
  • 4× AAA Batteries
  • 1× User Manual
  • 1× Traceable Calibration Certificate with Complete Data and Uncertainty Values
• • User Manual (English)