Ltpgtltspangttheampnbspltspangtltstronggtbell vandal resistant door entry systemampnbspltstronggtltspangtallows you to ttalk to your visitors before opening the doo the outdoor unit is weatherproof vandal and water resistant the secruity system is easy to install and comes complete kit in a box this will be an excellent system for the elderly or less mobile onesltspangtltpgt