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The Brüel & Kjær 4231 is a single-frequency sound calibrator designed to provide stable and precise sound pressure levels. Its lightweight and portable design ensures engineers and technicians can rely on accurate microphone verification in both laboratory and field environments. With one-button operation, it offers efficient use without complex setup, making it a trusted reference tool across industries.
Ideal for quick checks and compliance testing, the Brüel & Kjær 4231 simplifies the calibration process while maintaining high accuracy standards. Its rugged build guarantees dependable performance in varied applications.
Testwall can supply the used Brüel & Kjær 4231, fully tested. With expert support and global delivery, Testwall ensures high-performance instrumentation with unmatched reliability and service quality. Please contact us directly if you need calibration or repair of the Brüel & Kjær 4231.
Returns
If you are not completely satisfied with your purchase, simply return the item to us in its original condition within 30 days of receipt.
Returned items should be unused and must be returned in original packaging with any enclosed documentation. We will issue a full refund on receipt, excluding the original delivery charge. Alternatively, if preferred, we will exchange the item.
VAT
Prices exclude VAT. Intra-Community transactions: Under the EU VAT Directive, B2B sales of goods across EU VAT borders is VAT zero-rated.
Where VAT is charged, a rate of 23% is applied.
VAT is not charged outside of the EU.
