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Extech 407790A Type 2 Integrating Sound Meter w/ Octave Band Analyser

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407790A
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Extech 407790A Type 2 Integrating Sound Meter with Real-Time Octave Band Analyser

Designed for professional sound studies, Extech's 407790A gives you everything you need to measure sound pressure level (SPL) equivalent continuous sound pressure level (Leq), sound exposure level (SEL), maximum sound pressure level (Lmax) and minimum sound pressure level (Lmin).

Extech's 407790A sound analyser is made for studies in applications such as :

  • Real-time analysis of noise from any source, including machinery and vehicles
  • Monitoring office/plant noise and storing data for further analysis
  • Maintaining noise level statistics for internal and external audits
  • Performing machinery noise monitoring or use for noise reduction programs

This is a powerful, type 2 integrating sound level meter with built-in octave and 1/3 octave band real-time functions, capable of displaying real-time graps on a 3.5", full colour backlit TFT screen. The display can show Leq, Le, Lmax, Lim, Lp, L05, L10, L50, L90 and L95.

Values are stored directly on a microSD card and can be easily transferred to a PC for further analysis using the software and USB cable included in the pack. A real-time clock built into the 407790A makes sure all your data is date/time stamped for quick and easy referencing.

There are many different additional functions included on the Extech 407790A including A, C and Z weighting with fast/slow response, an internal self test, a tripod mount for hands-free use and analogue AC/DC recorder output.

Extech 407790A Type 2 Integrating Sound Meter with Real-Time Octave Band Analyser Key Features

  • Integrated type 2 sound meter equipped with octave band analyser
  • 5 sound measurement ranges - 20 to 90dB, 20 to 100dB, 20 to 110dB, 30 to 120dB and 40 to 130dB
  • High quality, 3.5" (320 x 240) TFT colour LCD display with built-in backlight
  • Displays Leq, Le, Lmax, Lmin, Lp, L05, L10, L50, L90 and L95
  • Stores readings directly onto a microSD card
  • Transfer data quickly and easily to a PC using software and cable provided
  • A, C and Z weighting fast/slow response
  • 25Hz to 10kHz frequency response
  • Meets ANSI and IEC Type 2 standards
  • Internal self test when powered on
  • Detachable (13.2mm) diameter condenser microphone
  • Tripod mount on rear of instrument
  • Analogue AC/DC recorder output
  • Real-time clock with year, month, day, hour, minute and second display
  • Optional microphone extension cable available (part number 407764-EXT) - ideal for use in enclosures or remote locations

What's Included?

  • Extech 407790A Sound Analyser
  • Windows Compatible Software
  • USB Cable
  • 4 x C Batteries
  • Microphone Wind Screen
  • Mini Screwdriver
  • 120V AC Adaptor
  • Case

Optional Accessories

  • 407764-EXT: 15ft (4.7m) Microphone Extension Cable
  • 407744: 94dB Sound Level Calibrator
  • 407766: 94/114dB Sound Level Calibrator

Extech 400790A Technical Specifications

Applicable Standards ANSI S1.4 Type 2
EN IEC 60561
EN IEC 60804
EN IEC 1260-1995
Accuracy ±1.5dB (ref 94dB @ 1kHz)
Measurement Functions Lp, Leq, Le, Lmax, Lmin, L05, L10, L50, L90, L95
Frequency Range 25Hz to 10kHz
Frequency Weighting A, C and Z
Time Weighting Fast, Slow, 10ms, I
Display 3.5" (89mm) 320 x 240 colour backlit LCD; displays 1/1, 1/3 and 1/1, 1/3
1/1 - 1/3 analyser level range 5 ranges in 10db steps: 20 to 90dB, 20 to 100dB, 20 to 110dB, 30 to 120dB, 40 to 130dB
1/1 Octave and 1/3 Octave 1/1 Octave band center frequencies: (9 bands);
1/3 Octave band center frequencies: (27 bands)
Signal Output AC output: 1V rms (at full scale)
DC output: 3.0V, 25mV/dB
Memory MicroSD Card
Measurement Time 1s to 23h 59m 59s
Power 4 x type C size 1.5V batteries
External DC power: 6V, 1A
Dimensions 345 x 100 x 60mm
Weight 950g
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Additional Information
SKU 407790A
Manufacturer Part Code 407790A
Country of Origin China
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