The United Security Products PF2-EC 2 Channel Auto Dialer with Power Failure Notification features busy-line and no-answer detection to ensure prompt transmission of prerecorded message delivered to as many as 4 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 preselected number of dialing attempts. Installation and hookup are quick and easy, whether installed in conjunction with normally open, normally closed dry contact or voltage activation sensors. The unit can also function as a stand-alone device, by simple connection to an ordinary telephone jack.