Extech Sound Meters

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Technical

Noise or sound level meters are commonly used in noise pollution studies for the quantification of different kinds of noise, especially for industrial, environmental and aircraft noise.

Extech 407730: Digital Sound Level Meter

40-130dB Meter featuring large LCD display with analog bargraph

EXTECH 407730: Digital Sound Level Meter

Features:

  • ±2dB accuracy with 0.1dB resolution
  • A&C weighting
  • AC analog output
  • Record Max/Min values over time
  • Auto power off and Max Hold functions
  • Utilizes 0.5″(12.7mm) condenser microphone
  • Tripod mountable
  • 40 to 130dB measuring range
  • Fast/slow response time
  • Tripod mountable
  • Complete with 4 AAA batteries and microphone windscreen

 

Extech 407732-KIT: Low/High Range Sound Level Meter Kit

Digital sound level meter with 94dB sound calibrator and carrying case

EXTECH 407732-KIT: Low/High Range Sound Level Meter Kit

Features:

  • Complete with 407732 Sound Meter, microphone wind screen, calibration screwdriver, 9V battery, plus 407722 Sound Calibrator with 9V battery. Supplied in an attractive hard carrying case that provides protection and organization for your meter and accessories.
  • High accuracy meets ANSI, and IEC Type 2 standards
  • High and Low measuring ranges (35 to 130dB)
  • Data Hold and Max Hold functions
  • Backlit display to view in dimly lit area

Extech 407732: Low/High Range Sound Level Meter

Dual-range Type 2 digital sound level meter with backlit LCD

EXTECH 407732: Low/High Range Sound Level Meter

Features:

  • High accuracy meets ANSI and IEC 651 Type 2 standards
  • High and Low measuring ranges: 35 to 100dB (low) and 65 to 130dB (high)
  • Data Hold and Max Hold functions
  • Backlit LCD display to view in dimly lit area

Applications:

• Enforcing community noise ordinances
• Meeting government safety issues (OSHA)
• Installing audio systems
• Product noise certification and reduction

Extech 407750: Sound Level Meter with PC Interface

Big backlit display, PC interface & background sound absorber

EXTECH 407750: Sound Level Meter with PC Interface

Features:

  • Auto/Manual ranging from 30 to 130dB in 6 ranges
  • Meets ANSI and IEC Type 2 standards
  • A and C selectable frequency weightings
  • Fast and Slow selectable response times
  • Background noise absorber mode for machine noise
    measurements filters ambient noise
  • Large 3 1/2 digit display with 0.1dB resolution
    with backlighting and analog bargraph
  • Electret condenser microphone provides 1.5dB accuracy
  • Min/Max plus analog output and tripod mount
  • Max Hold latches maximum value on display
  • RS-232 interface for capturing data directly
    on a PC, optional Windows® compatible software
  • Complete with batteries and carrying case

Applications:

  • Machine noise evaluation
  • OSHA compliance testing
  • Community noise measurement
  • Noise ordinance
  • PC interface for data collection

Extech 407790A: Real Time Octave Band Analyzer

Type 2 integrating sound level meter with Octave and 1/3 Octave Band real time display

EXTECH 407790A: Real Time Octave Band Analyzer

Features:

  • Wide measurement in 5 ranges: 20 to 90dB, 20 to 100dB, 20 to 110dB, and 30 to 120dB, 40 to 130dB
  • 3.5″ (320×240) TFT color LCD with backlight feature displays Leq, LE, Lmax, Lmin, Lp, L05, L10, L50, L90, L95
  • Stores readings on microSD card
  • Transferred data to a PC to be analyzed using software and cable provided
  • A, C and Z weighting with Fast or Slow response
  • 25Hz to 10kHz frequency response
  • Meets ANSI and IEC Type 2 standards
  • Internal self test when powered ON
  • Detachable 0.52″ (13.2mm) diameter condenser microphone and Tripod mount provided on rear
  • Analog AC/DC recorder output
  • Real time clock with Year, Month, Day, Hour, Minute
    and Second display
  • Optional microphone extension cable for
    measurements in enclosures and other remote
    locations (407764-EXT)
  • Complete with Windows® compatible software, USB
    cable, 4 x C batteries, microphone wind screen, mini
    screwdriver, 120V AC adaptor, and case
 

SLM400 Sound Level Meter

• Test and verify sound levels for worker safety (OSHA), community noise ordinances, night clubs/concerts, airports, mines, athletic events, construction sites, vehicle testing, wind farms, new product noise reduction, and other applications.

Features:

  • 35 to 130dB over 2 ranges.
  • ±1.5db accuracy.
  • A and C weighting.
  • Includes Type 2 Sound Level Meter with 9V battery, windscreen, stored in a pouch case.
  • Optional model complete with Certificate of Traceability to N.I.S.T.