The Extech 407790A-NIST Real-Time Octave Band Analyzer is an advanced and versatile instrument for comprehensive sound level analysis. This analyzer combines the functionality of an auto-ranging Type 2 integrating sound level meter with real-time 1/1 and 1/3 octave band noise display and analysis for precise acoustic evaluation.
Designed for professional applications, it offers five core measurement parameters: SPL, Leq, SEL, Lmax, and Lmin—allowing for an in-depth understanding of sound environments. Built-in memory stores thousands of data points, which can be conveniently transferred to a PC via the included software and USB cable for further analysis.
This unit supports A, C, and Z frequency weighting along with Slow, Fast, and Impulse response settings, providing measurement flexibility across diverse environments. Outputs include analog AC and DC for direct connection to recorders or monitoring equipment. Certified with NIST Calibration, this analyzer ensures reliable and traceable measurements.
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
- 1 - NIST Calibration Certificate
Features
NIST Calibration
Comes certified for measurement traceability to national standards.
Multiple Measurement Ranges
Offers 5 selectable ranges: 20-90dB, 20-100dB, 20-110dB, 30-120dB, and 40-130dB for flexible acoustic testing.
High-Resolution Display
Equipped with a 3.5 in. (320x240) TFT color LCD featuring backlight for enhanced visibility.
Comprehensive Acoustic Metrics
Displays a variety of sound parameters including Leq, LE, Lmax, Lmin, Lp, L05, L10, L50, L90, and L95.
MicroSD Card Storage
Stores readings for later review or transfer, supporting large data sets.
Exceptional Linearity
Maintains precise linearity over a wide 100dB range for accuracy across applications.
Data Transfer Capability
Includes software and USB cable to analyze recorded data on a PC.
Flexible Weighting and Response
Supports A, C, and Z weighting with selectable Fast or Slow response times.
Broad Frequency Response
Captures sound frequencies from 25Hz to 10kHz, covering most acoustic environments.
Standards Compliant
Meets ANSI and IEC Type 2 requirements for sound level measurement tools.
Self-Diagnostic Feature
Performs an internal self-test upon power-up for operational assurance.
Detachable Microphone and Tripod Mount
Includes a detachable 13.2mm condenser mic and rear tripod mount for hands-free use.
Analog Outputs
Provides AC/DC outputs for integration with recorders and external equipment.
Built-In Real-Time Clock
Time-stamps data with year, month, day, hour, minute, and second information.
Optional Extension Cable
Supports remote measurement setups with optional 407764-EXT microphone extension.
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
- 1 - NIST Calibration Certificate
Specifications
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Measurement Ranges: 20 to 90dB, 20 to 100dB, 20 to 110dB, 30 to 120dB, 40 to 130dB
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Display: 3.5 in. (320x240) TFT color LCD with backlight
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Frequency Response: 25Hz to 10kHz
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Weighting Options: A, C, and Z
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Response Time: Fast, Slow, Impulse
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Output: AC/DC analog recorder output
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Microphone: Detachable 0.52 in. (13.2mm) condenser microphone
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Storage: MicroSD card for data storage
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Data Transfer: USB to PC with software
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Internal Memory: 12,280 data records (sound level mode); 1024 records (Octave mode)
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Self-Test: Performed on power-up
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Clock Function: Real-time with date and time stamps
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Tripod Mount: Included on rear
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Optional Accessories: 407764-EXT microphone extension cable
FAQ
Q: What is included in the NIST Calibration?
A: A certificate verifying traceability to NIST standards is included with the device.
Q: Can this analyzer store data for later review?
A: Yes, it can store thousands of data records in both sound level and octave modes using its internal memory and microSD card.
Q: Is the software compatible with Windows?
A: Yes, the included software is designed for Windows-based PCs.
Q: Does the unit support real-time measurements?
A: Yes, it displays real-time octave band measurements and includes a real-time clock for timestamping.
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