The Yale Stand Alone Alarms offer low cost security protection for homes, garages and sheds. No wires or mains power is required as each unit is powered by batteries. The Yale Motion Detector Alarm P-SAA8011 can be wall mounted or left free standing allowing you to move it to different locations as required.
Up to 3 sensor alarms can be linked together using Touch & Link technology with a wide range of up to 25 metres. Touch & Link works by simply touching the metal contacts of each device together.