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Limited 2-year warranty
Preston Products warrants its products against defects in workmanship and material under normal, intended use for a period of two years from the date of purchase.
Other conditions and limitations apply. See warranty in the product's manual for further details.
Satisfaction Guarantee
If you are not satisfied with the performance of the ALT-621 or ASP-621 indicator(s), you may return it for a full refund, if returned within 30 days of receipt.
Returned products must be in original condition (normal, minor wear is acceptable).
Shipping costs are not refundable.