Online Support Request To help us help you, please provide as much information as possible in the form including your phone number and Sentinel Systems Customer Number if possible. A technician will reply to you as soon as possible. ** Important Notice ** All customers who are not under warranty or not currently enrolled in the quarterly support program are subject to support charges of $ 25 per 15 minutes. The minimum support charge is $ 25. If you do not know your customer number, please say "Don't Know". Your name Your email Site Name Address Customer Number Phone Number Subject Describe your request Send a copy to my own email address Submit powered by fox contact