Check the listing for details. USP Automatic Voice Dialer, 4-Channel Voice Message Dialer (AD2000). Color: N/A, Condition: New. Listed at 408.85 USD. The AD-2000 dialer features busy-line and no-answer detection to ensure prompt transmission of up to 4 pre-recorded messages delivered sequentially to as many as 8 standard telephones, cellular phones, voice and/or numeric pagers. Messages to both local and long-distance calls can be transmitted. When activated, the dialer instantly begins calling the numbers in sequence, delivering each message 1 to 3 times in a row, in accordance with the pre-selected number of dialing attempts. The AD-2000 is extensively programmable, offering personalized customization to fulfill virtually any residential or business requirement. Plain-English prompts walk the user through the process in a timely manner. Installation and hookup are quick and easy, whether installed in conjunction with normally open, normally closed dry contact or voltage activation sensors.A Full Featured Security System with 4 Independent Voice Message Dialer Channels4 Separate Outgoing MessagesAutomatically Calls up to 8 telephones or cell phonesBuilt-in Line SeizureListen-In verification and 2 way communicationEEPROM Memory retains program despite power lossRemote reset feature allows termination of activated channel Universal Dial Tone.Works with any analog phone system.Built-In Auxiliary Output to drive external siren, strobe or relay NOTE: Power supply sold separately.ApplicationsSecurity/burglar/fire alarm notificationEquipment malfunction notificationEnvironmental warning notificationHigh/Low Temperature threshold notificationTechnical DetailsManufacturer Part #: AD2000UPC: 749617043177Power source: 9-18VDCCurrent (OPERATE mode – standby): 28mA typical.Current (OPERATE mode – dialing): 100mA max.Activation:N.C. Activation: dialer activates when an "open" is detectedN.O. Activation: dialer activates when a "close" is detectedVoltage Activation:N.C. (applied voltage: Min. +5VDC, Max. +28VDC)N.O. (loss of continuous voltage: Min. 0VDC, Max. 0.25VDC)Max. Digits for outgoing numbers: 50Operating temperature range: -18 to 55 C (0 to 130 F)Dimensions (inches): 6 x 4 x 1.5inMounting: Wall or Flat SurfaceCase Material: ABSColor: White