Battery Powered: Operates with 2 AAA batteries, ensuring easy installation and maintenance Real-Time Monitoring: Instantly check the status of your doors and windows, keeping your home secure at all times History Records: Access the history of door and window activity through the Tuya Smart App for comprehensive monitoring Smart App Notifications: Receive instant alerts on your smartphone via the Tuya app, keeping you informed of any changes Voice Assistant Compatibility: Works with Amazon Alexa and Google Assistant, allowing for seamless integration into your smart home system Low Battery Alerts: Get notifications when the battery is low, ensuring continuous protection Smart Automation: Create intelligent interactions with other smart devices in your home for enhanced security and automation Versatile Applications: Ideal for monitoring doors, windows, drawers, and other movable applications that require detection Specifications: Battery: 2 x AAA battery (not included) Quiescent current: ≤10uA Alarm current: ≤15mA Low voltage: ≤2.5V Ziqbee operating frequency: 2.400GHz-2.484GHZ Magnetic control distance: ≥15mm Light range: 0~10000Lux Operating temperature: -10℃~+50℃ Operating humidity: maximum 95%RH