Home About Us Products Campus Security Training Contact Us CAMPUS SECURITY School security is crucial in today’s society. A-1 Corporate Hardware will be setting up seminars in your area to display and demonstrate the latest security products for your school. We offer a large variety of products that are available under both state of illinois and gsa contracts! For additional information, or if you are interested in attending a seminar near you, please contact our main office at (800)368-2348 , email info@a-1lock.com or subscribe to our newsletters: Sign Up Now JO Series Entry-Level Video Intercom with 7″ Screen The JO Series identifies visitors at locked doors. Inside stations feature easy to use touch buttons and a large 7″ video screen. The JO Series can accommodate one door and up to two interior master stations. Ready to install box sets include one door station, one inside station, and a power supply. JO Series 7 inch Touchscreen CONNECT WITH US St. Louis and Southern Illinois 8225 Manchester Road Brentwood, MO 63144 Office: 314.477.5149 Toll-free: 800.368.2348 Fax: 314.918.0602 Corporate Headquarters 101 North Fourth Street Springfield, IL 62701 Office: 217.744.7575 Lock Shop: 217.523.8023 Toll-free: 800.368.2348 Fax: 217.744.7662 Copyright 2021 by A-1 Corporate Hardware | Terms Of Use | Privacy Statement Login