Worldoor&reg; New 2 In 1 Infrared Motion Sensor Alarm Chime with 2 Remote Control Ideal for Home, Office, Shops and Warehouses This IR Detector Alarm is motion sensored and will sound when someone enters the protected area Ideal for home, office, shops, warehouses and more Detection distance: 10m / 30 feet Detection angle: 110 degrees wide Includes 2 remote controller keychains to easily engage or disengage alarm from a remote distance