Long Range Wireless Driveway Monitor Both alarm's transmitter and receiver have antennas that allow 360 degree rotation and pull away from sides of boxes. For best results in communication between transmitter and receiver it is ideal for the antennas to be on the same plane. Example: (If one antenna is pointing up in the vertical position, then the other antenna should be pointing up also. If one antenna is in the horizontal position, then the other antenna needs to be horizontal and pointing at each other for optimum reception). When it comes to distance in communication between transmitter and receiver environmental condition need to be considered. Line of sight without obstacles is ideal. Every tree, bush, fence, car, building in direct line of sight will reduce communication between units. These units should give you approximately 1500' range between transmitter and receiver, In some cases you may get a distance of to 3000'. You may also add additional transmitters to one receiver or additional receivers to one transmitter.You will not be disappointed with Driveway Informer Wireless Driveway Alarm
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