Welcome to our online store. Laser Reference is now in its 14th year of producing Pro Shot construction lasers. If you have any questions, please feel free to contact us via telephone, fax, or email. Laser Reference, Inc. 151 Martinvale Lane San Jose, CA. 95119 Toll Free US & Canada 1.800.881.7116 Telephone +1.408.361.0220 Fax +1.408.361.3180 sales@proshotlaser.com Orders will be shipped via UPS Ground Commerical, UPS Ground Residential, UPS 2nd Day Air, or UPS Overnight. Freight Charges will be calculated based upon the rates on UPS's shipping site. California residents will be charged sales tax. At present, we can only ship orders to locations in the US. We accept Visa, Mastercard, American Express, and Discover cards. California residents must pay state sales tax. Items ordered ship with a 10 day money back guarantee. If for any reason you are not satisfied with your purchase, you may return it for a full refund, (excluding shipping), provided the returned item is in new condition. If you wish to return an item, you should contact Laser Reference for a return authorization number. The L4.7, L4.7 Magnum, and AS2 (Magnum as well) laser transmitters, and the R7 receivers are covered by our 3 year Guardian Warranty. These products are warranted to be free from defects in workmanship and materials for 3 years from the date of original purchase. Additionally, these models offer protection against damage due to any cause to their internal leveling mechanisms, rotating mirrors, and lasers diodes for 3 years from the date of original purchase. The L6 laser is warranted to be free from defects in workmanship and materials for a period of 2 years from the date of original purchase. The L3, L5 laser and R5e receiver are warranted to be free from defects in workmanship and materials for 1 year from the date of original purchase.