Our apparel products have a limited warranty on manufacturers defects.
NK Product Warranty
No Questions Asked 30-Day Satisfaction Warranty
If, for any reason, you are not satisfied with the performance or operation of any NK or Kestrel product in the first 30 days, you may return it to your place of purchase for a full refund.
We warrant every NK and Kestrel product to be free of defects in materials and workmanship for the product’s applicable warranty period as stated below. For Kestrel Meters and Loggers, measurement accuracy is warranted to be within the specifications on the supplied Certificate of Conformity including specified drift since date of manufacture. NK will repair, recalibrate or replace (at NK’s option) any defective product or part when notified within the warranty period, and will return the product via domestic ground shipping or NK’s choice of method of international shipping at no charge.
Products & Accessories: Warranty Period:
Blue Ocean Rugged Audio by NK (Excluding battery packs) Five (5) Years
NK Performance Electronics for Rowing and Paddling Two (2) Years
Interval Sports Watches Two (2) Years
Rechargeable Battery Packs (All NK External) Two (2) Years
All warranties are measured from the date of purchase by the first consumer end user. If no proof of purchase is available, the warranty period will be measured from the manufacture date of the product as determined by serial number.
The following do not result from a manufacturing defect and are not covered under this warranty.
Damage due to improper use or neglect (including corrosion).
Damage resulting from severe impact, crushing or mechanical harm.
Modifications, alterations or attempted repairs by someone other than an authorized NK repair agent.
Water damage resulting from exposure to water after product enclosure has been visibly damaged and/or failure to return product for service promptly after product enclosure has been compromised.
Impeller failure not caused by a manufacturing defect.
Normal wear and tear.
Accuracy issues resolvable by recalibration.
Reduction in capacity of rechargeable batteries or battery packs age normal for their age and/or number of charge/discharge cycles.
Failed batteries other than an NK rechargeable battery pack and/or damage resulting from corrosion or leakage of any installed batteries other than an NK rechargeable battery pack.