The Extech 407790A Real-Time Octave Band Analyzer is a professional-grade instrument designed for comprehensive sound level monitoring and analysis. Equipped with 1/1 and 1/3 octave band filters, it offers real-time analysis of noise across a broad frequency range, making it ideal for evaluating sound in various environments including industrial, vehicular, and commercial settings.
It features a wide dynamic range from 30 to 130dB and a high-resolution 160 x 160 backlit LCD that displays numerous parameters such as Leq, LE, Lmax, Lmin, and statistical levels (L05 to L95). Its internal memory stores over 12,000 readings in sound level mode and 1,024 records in octave mode. Data is easily transferred to a PC using the included USB cable and software for further analysis.
Users can select from A, C, or Z frequency weighting and choose fast, slow, or impulse response times to match specific testing requirements. Additional outputs such as AC and DC analog signals make it compatible with external devices for real-time charting. Built for precision and flexibility, it includes a detachable condenser microphone, tripod mount, and internal self-test function.
What's Included:
- 1 - Windows Compatible Software
- 1 - USB Cable
- 4 - C Batteries
- 1 - Microphone Wind Screen
- 1 - Mini Screwdriver
- 1 - 120V AC Adaptor
- 1 - Case
Features
Wide Dynamic Range
Measures sound levels from 30 to 130dB, covering a vast spectrum of noise intensities.
Advanced Display Capabilities
Backlit LCD shows Leq, LE, Lmax, Lmin, Lp, and statistical noise levels including L05 through L95.
Extensive Data Storage
Stores up to 12,280 readings in sound level mode and 1,024 in octave mode on a microSD card.
PC Connectivity
Includes USB cable and software for seamless data transfer and analysis on a computer.
Multiple Frequency Weightings
Supports A, C, and Z weighting options with selectable Fast, Slow, or Impulse response times.
Standards Compliance
Meets ANSI and IEC Type 2 standards for accurate and reliable performance.
Self-Test Function
Performs an internal check automatically when powered on for operational assurance.
Detachable Microphone and Mount
Features a 13.2mm condenser microphone and a tripod mount for versatile setup.
Analog Outputs
Provides both AC and DC output signals for real-time recording and monitoring.
Real-Time Clock
Displays full date and time to timestamp data for traceability.
Optional Extension Cable
Can be used with the Extech 407764-EXT cable for remote or enclosed measurements.
Versatile Applications
Ideal for real-time noise analysis, monitoring workplace sound, auditing, and noise reduction programs.
What's Included
Included with Your Purchase:
- 1 - Windows Compatible Software
- 1 - USB Cable
- 4 - C Batteries
- 1 - Microphone Wind Screen
- 1 - Mini Screwdriver
- 1 - 120V AC Adaptor
- 1 - Case
Specifications
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Sound Level Range: 30 to 130dB
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Display: 160 x 160 dot matrix backlit LCD
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Stored Readings: 12,280 (sound level), 1,024 (octave mode)
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Frequency Weighting: A, C, Z
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Response Time: Fast, Slow, Impulse
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Frequency Response: 25Hz to 10kHz
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Microphone: 0.52" (13.2mm) condenser, detachable
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Outputs: Analog AC/DC recorder outputs
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Real-Time Clock: Year, Month, Day, Hour, Minute, Second
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Standards Met: ANSI and IEC Type 2
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UPC: 793950407912
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Model: 407790A
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Condition: NEW
FAQ
Q: Can I export data for analysis?
A: Yes, the analyzer comes with software and a USB cable to transfer data to a PC for analysis.
Q: What frequency ranges does this unit analyze?
A: It supports a frequency response range of 25Hz to 10kHz with 1/1 and 1/3 octave band filters.
Q: Is it compliant with professional sound measurement standards?
A: Yes, it meets ANSI and IEC Type 2 standards.
Q: Can I use it in remote locations?
A: Yes, it supports an optional extension cable (407764-EXT) for measurements in hard-to-reach or enclosed areas.
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