Salesman sold us the system with the option to cancel within 3 business days. We cancelled the next day. Unfortunatly our money was withdrawn before anyone even called us to set up an installation date.Long story short weve been waiting on a refund for 2 1/2 months. In which weve been told twice that the check was in the mail.What worries me about this company is that if I have been waiting this long and havent recieved my refund by now, I wonder how long I would have to wait for someone at Devcon to respond to an emergency call.Devcon is a poor choice of security. Use it only if you want the police to find 2 1/2 month old rotting corpses.