Home › Products › Nor1229 Free-field Microphone

Microphones

Nor1229 Free-field Microphone

General purpose free-field measurement microphone.

Overview

The Nor1229 is a versatile 1/2" free-field condenser measurement microphone providing reliable IEC 61094-4 Class 1 performance for a wide range of general acoustics applications. Designed as a cost-effective alternative to premium microphone models, the Nor1229 delivers the accuracy required for standards-compliant noise measurements while offering an accessible price point for organizations expan…

Key Features

  • IEC 61094-4 Class 1 accuracy for standards-compliant measurements
  • Cost-effective pricing for fleet and multi-unit deployment
  • Frequency range 20 Hz to 12.5 kHz covering critical measurement bands
  • 200 V externally polarized for stable long-term performance
  • Standard 1/2" form factor compatible with all Norsonic preamplifiers
  • Individual calibration certificate with traceable sensitivity data
  • Robust construction for reliable field operation
  • Proven design for consistent performance across units

Applications

  • General environmental noise monitoring per ISO 1996
  • Occupational noise assessment per ISO 9612
  • Educational and university acoustics laboratory use
  • Fleet deployment for government noise monitoring programs
  • Building acoustics screening measurements
  • Routine noise compliance verification

Technical Specifications

  • Standards: IEC 61094-4
  • Size: 1/2"
  • Frequency: 20 Hz – 12.5 kHz

Frequently Asked Questions

  • What applications is Nor1229 best suited for?
    The Nor1229 provides Class 1 accuracy for general-purpose sound measurement applications at a cost-effective price point. It is ideal for organizations requiring multiple microphones for fleet deployment, educational institutions, training programs, and routine noise monitoring where the extended frequency range and ultra-low noise of premium models are not essential.
  • How does the Nor1229 compare to the Nor1225?
    The Nor1225 offers a wider frequency range (3.15 Hz to 20 kHz vs 20 Hz to 12.5 kHz) and higher sensitivity (50 mV/Pa), making it the premium choice for demanding measurements. The Nor1229 provides Class 1 accuracy at a lower cost, making it suitable for routine measurements and applications where the extended specifications are not required.
  • Is the Nor1229 accepted for regulatory noise measurements?
    Yes, the Nor1229 meets IEC 61094-4 Class 1 requirements, which is the microphone standard referenced by IEC 61672-1 for Class 1 sound level meters. It is therefore accepted for regulatory noise measurements that require Class 1 instrumentation, including environmental, occupational, and building acoustics assessments.

Application Guide

The Nor1229 Free-field Microphone belongs to the Norsonic Microphones range. See the Microphones application guide for system configuration, compatible accessories, and applicable measurement standards.

Related Norsonic Products

Why Norsonic?

  • Manufactured in Norway — decades of acoustic measurement heritage; all instruments designed and built in Norsonic AS, Lierskogen, Norway
  • IEC 61672 Class 1 — highest accuracy class for professional and regulatory acoustic measurement
  • International type approvals — PTB (Germany) and LNE (France); accepted by environmental authorities across the region
  • 3-year manufacturer warranty — covers parts and labour; Norsonic Asia authorized service center support throughout the region
  • Open data formats — .nox files work with NorReview and can be exported to CSV, Excel, and third-party analysis software

Calibration and Compliance

  • All Norsonic instruments require periodic IEC 61672-3 calibration — Norsonic Asia provides factory-authorized calibration services with full DANAK-traceable certificates
  • Calibration interval: 1 year for ISO 17025 accredited laboratories; 2 years for field instruments in non-accredited applications
  • Field calibration check: use an IEC 60942 Class 1 sound calibrator (94 dB or 114 dB) before and after each measurement session
  • Loaner instruments available during calibration to minimize project downtime — contact Norsonic Asia for loaner availability

Availability & Regional Support

Available from Norsonic Asia — the factory-authorized distributor for ASEAN, GCC, and South Asia. Instrument supply includes 3-year manufacturer warranty, factory-authorized calibration services, operator training, and after-sales technical support.

  • Typical lead time: 3–6 weeks from order confirmation (ex-factory Norway)
  • Countries served: Singapore, Malaysia, Thailand, Vietnam, Philippines, Indonesia, UAE, Saudi Arabia, Qatar, Kuwait, India, Bangladesh, Sri Lanka, and more
  • Technical support: English and Arabic; response within 1 business day

Request a Quote →

← All Products  |  Download Datasheet  |  Find Local Distributor  |  Calibration Services