Solar charging: this motion sensor uses a rechargeable lithium battery, which is charged by solar energy. An hour of sunshine per day can fulfil an all-weather standby time. It can be fully charged after 6-8 hours of solar charging, enough to support the alarm more than 200 times. IP67 waterproof: the ultra-high waterproof rating ensures that the sports alarm is protected from rain. It can be installed outdoors and used outdoors for a long time. It beats alarm before someone enters your home illegally. 4 working modes: 4 working modes are available: 1 all-day sound and light alarm, 2 night tone and light alarm, 3 night flashing alarm, 4 close the alarm. You can switch the modes with the remote control or by pressing the button for the siren settings. Fixed installationThe wireless scale alarm comes with a hanging plate that is mounted with screws. You can install the hanging plate where you need it, simply hang the alarm on the hanging plate. It is more stable to use screws to install, and it is more suitable for various outdoor scenes. Widely used: the infrared sensor has a detection range of approx. 2-12 m and a remote control range of up to 200 m. Solar motion sensor alarms are suitable for security in houses, farms, villas, hotels, markets, dormitories and other places where security alarms are required.