Reliable Detection: Our state-of-the-art passive-infrared (PIR) sensor detects any movement within the detection zone, ensuring effective real-time monitoring of human movement within the monitoring range. Day and Night Monitoring: With strong sensitivity, our infrared sensor is not affected by light and can be sensed at day and night, keeping you informed about the situation and ensuring safety. Wide Application: Our human body infrared automatic sensing system is widely used in stores, homes, office buildings, factories, and other occasions, making it a wonderful tool for you. Low Power Design: Our unique power-saving mode ensures long standby time, and the exquisite appearance design is suitable for all kinds of decorative environments. Wired door chime is great for retail stores, shops, businesses, salons, front/back/side doors, etc. Dependable Technology: Our sensor has no false alarms and is anti-interference, making it perfect for long or hidden driveways to allow you just a little extra warning before guests (or intruders) arrive. Professional manufacture ensures you higher quality accessory, so you can buy it with ease., Weight: 0.20062065842 pounds