Clarity AM-PXB AlertMaster Personal Signaler The Ameriphone AlertMaster AM-PXB Personal Tactile Signaler works in conjunction with the AM-6000, AM-100, AM-RX2, AL10, AL12 master units or can be used as a master receiving unit in conjunction with any of the Alertmaster sound monitor accessories For use with the AL10, AL12,AM-RX2, AM-100, AM-6000 AlertMaster Notification Systems. Portable vibrating notice and tactile pad for any kind of alert from the system. AM-PXB has a tactile pad for notification anywhere in or around the home, designed specifically for those with visual limitations AM-PXB is worn or carried for notification of household events whether inside, outside or in remote areas of the house, where flashing lamps may not be seen