Viking 150 Number Apartment Di

* Viking 150 Number Apartment Di* Compatible With Viking's Vandal Resistant K17003 K19008 Or Any Touch Tone Phone* Nonvolatile E2 Memory (no Batteries Required)* Remotely Or Locally Programmable* Stores 250 Tenant Touch Tone Phone Numbers And Keyless Entry Codes* Programmable Tenant's Relay Activation Code* Programmable Master Keyless Entry Code And Five Maintenance Codes* Programmable Call Timer* Multinumber Dialer Mode (for Kiosks Etc.)* Ringthru Mode For Calling The Entry Phone* Normally Open And Normally Closed (dpdt) Relay Contacts For Controlling Door Strikes Magnetic Locks Gates Etc.* Auxiliary Relay Input To Trigger A Timed Relay Activation For Postal Locks Etc.* Touch Tone And Pulse Dialing Toll Restriction* Programmable Allow/restrict For 911 And 311 Outside Calls* Log Bus Data Output For Logging Entry Events* Brand: Viking Electronics