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hi it's Matt with panic exit procom the leading authority on DIY installations of panic exit bars and door entry systems today we're talking about the a phone lineup of products the a phone corporation has a large number of intercom systems for a lot of different applications we carry a select few that have a great price point and work really well with door access control systems here we have the lem one DLS set and over here we have the c one two three l set the C one two three L set is a more basic system it's battery-operated it has a single room and single door station you can expand it into a double room station with a single door this one has less capabilities for wiring distances than the LEM one d LS set does the LEM 1d LS you can run wires for a longer distance so you can put your base stations further away the LEM one d LS set comes with a transformer so you're inside station