Wireless Wifi Smart Home Door Window Alarm Sensor AntiTheft Security System for Home Supplies

Feature: 1. Trigger your alarm and get notified when a door or window is opened, very timely. 2. Check the status of the door/window opening and closing in real time, and the on?off record is clear at a glance. 3. Independent use, without host/gateway, simplifying complexity. Exquisite and stylish appearance, fit for various environments. 4. Ultra?low power consumption and long battery life, energy?saving and more practical. 5. Completely wireless with user-replaceable battery. The product has the door opening, closing, battery power display. Specification: Item Type: Door/Window Sensor Material: ABS Color: White Size: Approx. 76x31x20mm / 3.0x1.2x0.8in Weight: Approx.51g/1.8oz Battery: 1 x CR2 lithium battery(Built-in) Battery Capacity: 850 mAh Application: Check the status of the door/window opening and closing in real time, and the on-off record is clear at a glance. . Package List: 1 x Door/Window Sensor1 x Magnetic Strip1 x Sticker1 x Pin1 x English Manual Note: 1. Please allow 1‑2in error due to manual measurement. Thanks for your understanding.2. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard.