1. Designed for wireless 433 outdoor solar intrusion infrared induction sound and light alarm. When an intruder enters the sensing area, the device will emit a sound and light alarm higher than 120 decibels for warning reminders and prompts. 2. Support 5 early warning alarm modes, 24-hour sound and light warning mode; 24-hour silent mode (light silent); intelligent judgment of no alarm during the day, entering the alert state at night; interference mode; silent alarm at night; dangerous area mode; light flashing. 3. Waterproof frame, easy installation, no need for debugging and wiring, thickened shell, durable and sun-proof, saving your installation troubles, one-time installation, safe and comfortable. 4. Standby for 60 days without children, automatically identify the night alarm mode, non-working state during the day, intelligent identification of continuous interference and alarm power consumption of personnel. When someone is always present, the device does not work, which can save power. Intelligent identification of pet interference and false alarms in different occasions. 5. The detection distance is 9-12 meters, which can intelligently identify the repeated shaking of the human body, flashing reminders in dangerous areas, and switching alarm modes day and night. 6. The Fresnel lens is used to effectively overcome the false alarm caused by sunlight, allowing you to experience smart life and enjoy a safe and accurate life.