Features: Two connection version type optional to meet different needs. Using passive Human (PIR) technology for efficient, accurate, and sensitive detection of motion. You can view the sensors in real-time on your receive motion detection notifications, and achieve remote monitoring. Adopting low-power technology, with low energy consumption and long usage time. Can connection with other intelligent devices to make your home smarter. Specifications: Material: ABS Type: WiFi, ZigBee3.0(optional) Size: approx. 2.45x2x7cm or 1x0.8x2.75inch Name: Human motion detection sensors Sensitive 105° Detection distance: within 5m Standing by current: less than 40μA Battery: 2xAAA(not included) Operating temperature: -10℃-45℃ Package Includes: 1 Piece Human Motion Detection Sensors(1pc, not multiple) Note: Please allow 1-2cm errors due to manual measurement. Please allow for slight color differences due to different display resolution.