Agrippa Pillow Fire Alarm Monitor for Deaf and Hard of Hearing. The Agrippa Deaf Alert is a vibrating pillow alarm with an LED display that alerts the deaf, hard of hearing, children, heavy sleepers or people on medication in the event of a fire in their home. The Deaf Alarm triggers when it detects the smoke alarm sounding. When triggered the Deaf Alert provides a visual warning, displaying the word 'Fire', activates the high-intensity LEDs and vibrates the pad.