This additional sensor is compatible with the Initial Guardline Wireless Driveway Alarm system. Please note that this sensing unit is NOT compatible with the Guardline 1/4 mile variety driveway alarm. You should buy the 1/4 range sensing unit to work with the 1/4 range driveway alarm.
- Additional sensor suitable with the initial Driveway Alarm by Guardline.This sensor will
- NOT deal with the Guardline 1/4 range driveway alarm. The 1/4 mile additional sensing unit should be bought to deal with the 1/4 mile variety driveway alarm.A total of 16 sensors can be added to the driveway alarm set, providing total coverage of your property.Lifetime Maker Service warranty