Wide Application Range: The wireless motion sensor can be used to monitor and protect your outdoor/indoor properties. Can be installed in the entrance, porch, gate, pool, garage, shed, etc. Ideal for homes, businesses and offices. The sensor works well in all seasons and the working temperature ranges from -30 to 150 (-30-70). 800m Long Range Wireless Transmission: The motion sensor and plug-in receiver receive alarm signals up to 800m away (the actual range depends on the local terrain), and it is a good solution for monitoring and protecting properties on a wide area. Advanced wireless transmission technology (FSK+FHSS) is adopted to make the system avoid interference from wireless signals of other devices. 21m Motion Detection Range: The motion sensor can detect moving people or vehicles within 10-15m. The updated motion detection chip and motion detection angle can reduce false alarms due to fallen leaves/small animals, sunlight, wind/temperature changes, etc. Ideal for outdoor/indoor where you want to receive an alert, such as driveways, pathways, patios, garages, gates and swimming pools. Plug and Play, Easy to Install: Just load 3 x 1.5V AA alkaline batteries (batteries not included in the package) and connect the receiver to the power outlet to complete the installation. The packaged product has been configured before delivery and you just need to place the sensors on the wall, fence post, tree or any other surface, and you can complete the installation in minutes.