Long Range Driveway Alarms are capable of sending their wireless signals up to four miles! Use our long range driveway alarms to monitor remote locations. These wireless long range systems can be used to monitor for intruders on foot or in vehicles! The long-range portable receiver allows you stay mobile while monitoring multiple remote locations! Long range wireless driveway alarms allow you to easily monitor multiple remote locations! Plus stay mobile with the portable receiver, perfect for ranches, parks, game reserves etc..