It can send a signal to remind you before you notice it. One transmitter can connect up to 50 receivers, and one receiver can connect up to 50 transmitters, which can completely cover the surroundings of your family, so it can effectively protect your indoor and outdoor properties, making your home the safest place in the world!To Avoid False Alarms 1. Mount the Sensor away from direct sunlight, such as under an overhang, covered area, or in a non-metal box. 2. Do not place the Sensor in areas where the wind will move it, also try to keep the Sensor in a clear path to the Receiver, so that you can get optimal performance. 3. It might be helpful (if you haven't tried yet) to move and mount the Sensor in a higher position, then angle the Sensor down to face the driveway. This may hopefully reduce the interference from objects in the distance and from sunlight. 4. Lastly, if none of these suggestions help, try tapping over a little of the sensor area with black tape as this may reduce Sensor sensitivity.Be able to detect a thief enters in your house at night.Motion sensor informs your pet has left your home.Driveway sensor facing the home or away.Parking space occupancy reminder.Know when your children has returned home or is safe on your premises. It can send a signal to remind you before you notice it. One transmitter can connect up to 50 receivers, and one receiver can connect up to 50 transmitters, which can completely cover the surroundings of your family, so it can effectively protect your indoor and outdoor properties, making your home the safest place in the world! To Avoid False Alarms 1. Mount the Sensor away from direct sunlight, such as under an overhang, covered area, or in a non-metal box. 2. Do not place the Sensor in areas where the wind will move it, also try to keep the Sensor in a clear path to the Receiver, so that you can get optimal performance. 3. It might be helpful (if you haven't tried yet) to move and mount the Sensor in a higher position, then angle the Sensor down to face the driveway. This may hopefully reduce the interference from objects in the distance and from sunlight. 4. Lastly, if none of these suggestions help, try tapping over a little of the sensor area with black tape as this may reduce Sensor sensitivity. Be able to detect a thief enters in your house at night. Motion sensor informs your pet has left your home. Driveway sensor facing the home or away. Parking space occupancy reminder. Know when your children has returned home or is safe on your premises.