Standard product warranty

Brüel & Kjær guarantees that all products including spare parts used by personnel authorized by Brüel & Kjær are free from defects in materials and workmanship under normal use for a period of one year (three months on repair and labour) from the date of delivery to the buyer, excepting that operation of software may not be completely uninterrupted or error free. The customer shall be responsible for determining that the product is suitable for the customer’s use and that such use complies with any applicable laws.

The customer shall notify Brüel & Kjær in writing of any claimed defect in the product immediately upon discovery, and any such product shall be returned without undue delay at the customer’s risk to Brüel & Kjær, transportation charges prepaid, no later than one year from the original date of delivery. At the discretion of Brüel & Kjær it can be agreed that Brüel & Kjær will inspect the product at the customer’s site.

Brüel & Kjær shall not be responsible for any breach in respect of products supplied if: (i) the customer makes further use of such products after defect has been discovered; (ii) the defect or failure arises from the customer’s misuse; (iii) the defect arises from any drawing, design or specification supplied by the customer or from other material or other property supplied by the customer, or from failure to supply such information or property, or from any parts or items that have not been completely manufactured by Brüel & Kjær; (iv) the defect arises out of the use of the products in conjunction with products or materials not reasonably contemplated by Brüel & Kjær; (v) the product has been repaired, modified or fitted by others than personnel authorized by Brüel & Kjær, and (vi) non-official Brüel & Kjær components or spare parts have been used.

If products are determined to be defective, Brüel & Kjær shall at its discretion (i) repair or replace such defective products, and Brüel & Kjær shall have reasonable time to make such repairs or to replace such products or to (ii) grant the customer a fair and proportionate price reduction for the delivery in question. Any repair or replacement of the products shall not extend the standard one year period for notifying Brüel & Kjær of defects.

Extended warranty for specific products

– in effect from the 1st of September, 2017, and covering products delivered after the 1st of September, 2016:


Brüel & Kjær provides three year’s warranty on all standard measurement microphones.

Brüel & Kjær provides three year’s warranty on standard microphone preamplifiers (excluding cables): Types 1706, 2669-B, 2669-C, 2669-L, 2670, 2671, 2673, 2695 and 2699.

The customer can purchase an extended warranty on most products supplied by Brüel & Kjær.

Download Brüel & Kjær's standard product warranty


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