Works with all Skylink Emergency Dialers and Monitoring Stations, Ideal for the protection of senior citizen and patients, Press once and activate the Emergency Dialers AD-105 or Monitoring Stations MS-2001 to call for help instantly, Trigger the alarm SC-001 or AA-433 of Skylink Total Protection System, Oversized button for the ease of elderly use, Water-resistant, FCCIC approved, SKU: SYLK064