Main Features: 1150FT Transmission Distance The receiver range will detect your sensors from 1150 feet away while there are no obstructions. While tested in real-world settings with trees, buildings, walls, and vehicles, transmission range can reach up to 500ft. (Please note: extra heavy interference such as thick walls, metal siding, tall hills, and many trees will diminish the wireless range.) No More False Alarm With adjustable detective distance switch, you can change the detect distance from 6 to 12 meters. Moreover, this system comes with two motion sensor covers, you can change the detective view angle from 110° to 10° to reduce false alarms from small animals and objects like birds and falling leaves; Super infrared penetrating power reduce false alarms from the bad weather such as rain/snow or other natural light sources interference such as sunshine. Customized System Each zone will vary from LED light flash which its sure easy to tell which zone is intruded. If you are looking for some diversity, this system has it all. Super Easy Installation No wires to run, no installation hassles. Put in the batteries and place the wireless motion sensor and alarm receiver wherever you want. The receiver and the sensor are paired out of the box, youll be up and running in minutes. Extra Long Battery Life (Battery is not included) Receiver can be powered on both by power adapter and battery, while the sensor is powered on 2 AA batteries which can last at least half year (Each outdoor sensor can be triggered 35000 times.) Long battery using ensure that you dont have to keep on top of the battery and taking the driveway alarm with you on a camping trip Integrate with the Function of Welcome/Burglar Alarm Mode 1. Alarm Mode When the Motion Detectorbe triggered, it will sound and send signal to the system panel. You will receive the Alarm Signalat the first time. 2. Welcome Mode When motion detectors are triggered, the host will make a sound "hello ,welcome". It was widelyused in stores,offices,factories,and cafe. Waterproof Motion Detector Can Be Used for Outdoor Different Detection Holes for Different Environments The detector will detect every 5s , when humans or vehicles are just detected ,the next detection will happen after 5s. One Alarm Host Can Connect Up to 8pcs PIR Motion Sensors An alarm host has four defense zones, each defense zones can learn 2pcs driveway sensor. 5 Level Volume to Adjust The minimum volume is mute, the maximum volume is 70db. 16 Songs Can Be Choose An alarm host has four defense zones, and each zone can be set with different ringtones, so you can clearly know which zone someone has entered. Technical Parameters DW9 Alarm Host Power: DC 5V (included) / 3pcs * AAA Battery (battery NOT included)Receiver Distance between Alarm Host and PIR Motion Sensor: 300 meters (in open area)Alarm Sound: 110dBWorking Humidity<80% P861 FSK Waterproof PIR Motion Detector Power: 2 * AA Batteries (battery NOT included)Detection angle : 90 degreesOutdoor usage : waterproof (IPV4)Installation height : 1-2m (vehicle) , 2-4m (human)