Grant Supplies put customer service as their first priority. We try our hardest to make sure all of our customers are satisfied with what they receive from our customer service. We are extending that goal on to our web site www.grant-security.com. Any questions on product, any technical questions, or need to find out about after-service, Please do not hesitate to contact below information, and our knowledgeable staff will gladly help you in everyway possible.