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Warranty Statement

All Sierra products are warranted to be free from defects in material and workmanship and will be repaired or replaced at no charge to Buyer, provided return or rejection of product is made within a reasonable period but no longer than one (1) year for calibration and non-calibration defects, from date of delivery. This warranty does not cover any damage or discoloration caused by corrosion due to gases, liquids, or any other source, nor does it cover normal wear of any seals in its products and with gases other than air, or unless otherwise specified in the contract. Such returns are contingent on Sierra's examination and reasonable satisfaction that any defects are covered by this warranty and that the Buyer has not returned the equipment in a damaged condition, due to any negligence, tampering, misapplication or product modification on the part of the Buyer or his agents. Sierra shall not be liable for installation charges, for expenses of Buyer for repairs or replacement, for damages from delay or loss of use, or other indirect or consequential damages of any kind.


Sierra extends this warranty only to Sierra products properly used and properly installed for the particular application for which intended and quoted, and this warranty does not cover products which have been modified without Sierra's approval or which have been subjected to unusual physical or electrical stress, alteration, or tampering, or upon which the original identification marks have been removed or altered. Whenever the design of the equipment to be furnished or the system in which it is to be incorporated originates with the Buyer, Sierra's warranty is limited specifically to matters relating to furnishing Sierra equipment free of defects in materials and workmanship and Sierra assumes no responsibility for implied warranties of fitness for purpose or use. Any replacement or repair shall be to Sierra's factory, unless otherwise directed. No items shall be returned for warranty repair without prior written authorization from Sierra.Sierra shall repair or replace any instrument at our discretion that is determined to be covered under this warranty.

Download a PDF Copy of Warranty Statement


Lifetime Warranty on All Dry-Sense Sensors
Sierra offers the lifetime warranty on all Dry-Sense™ sensors in the Sierra Model 640S, 670S and 780S (non UHP) Immersible Thermal Mass Flow Meters sold after January 1, 2010. See statement.

2-Year Warranty Coverage for Flow Switches
Sierra offers a 2-Year warranty coverage for our entire line of Innova-Switch™ Flow Level Switches beginning July 1, 2010.



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