If you want to be alerted when a vehicle is approaching your house or business, a driveway alarm can be used to monitor your driveway and send you a signal when it detects an approaching vehicle.
There are two different detection devices available. One detects motion and the other metal. The motion detector as it sounds will detect movement of vehicles, people, and large animals. If you live in an area where there are frequently deer around, you may get false signals caused by the deer.
You can get detectors in wireless and wired. Of course the wired system requires you to run a wire between the sensor and the monitor whereas the wireless detector doesn’t.
If you only want to detect vehicles, then you can get a detector with a metal detecting probe that is buried next to your driveway. With the probe, you won’t have false alerts cause by animals or people.
If you have a short driveway (less than 500 feet) the WireFree Wireless Alert System with 2-Way Voice Communication can be used. Not only will it tell you when it detects movement near the sensor, it will also let you carry on two-way communication with whoever is near the sensor. No metal detecting probe is available for this unit.
If you have a driveway as long as a couple of miles you can still use wireless driveway alarms. The MURS Alert has a range of up to four miles in perfect conditions, but realistically it should easily reach two miles under most conditions. It will sound a verbal “Alert Zone One” message when the sensor is triggered. This system has either a metal detecting probe or a motion sensing option. You cannot talk to the sensor like the system above, but you can use the monitor unit as an intercom system by adding additional monitors.
You can use these driveway alarms for more than just monitoring driveways. They can also be used for security applications as well. Both systems can be found at IntercomsOnline.com/