SAFE SIGNAL warrants that the equipment herein shall conform to said descriptions as to all affirmation of fact and shall be free from defects of manufacture, labeling, and packaging for a period of three (3) years from the invoice date to the original purchaser, provided that representative samples are returned to SAFE SIGNAL for inspection. Upon a determination by SAFE SIGNAL that a product is not as warranted, SAFE SIGNAL shall, at its exclusive option, replace or repair said defective product or parts thereof at its own expense except that Purchaser shall pay all shipping, insurance, and similar charges incurred in connection with the replacement of the defective product or parts thereof. This Warranty is void in the case of abuse, misuse, abnormal usage, faulty installation, or repair by unauthorized persons, or if for any other reason SAFE SIGNAL determines that said product is not operating properly as a result of causes other than defective manufacture, labeling, or packaging.