Goveelife Door Window Sensor, Group Control Unlimited Devices, Wireless Mini Product Features Home Automation: The smart sensor can control GoveeHome intelligent devices in the same space and other GoveeHome connected devices to indicate door or window changes. Maximum Compatibility: The GoveeLife Smart Door Window Sensor supports 50 GoveeHome smart ecological devices. Add the GoveeHome products you have to your setup to enhance your experience. The sensor is more powerful with multiple GoveeHome devices connected. Stable Connection: GoveeHome equipment (sold separately) and a 2.4 GHz Wi-Fi network connection are required. ?Not support 5G WiFi) Keep an effective distance between the device and the product at 80m/265ft. 25mm Wide Gap Allowed: The GoveeLife Door and Window Sensor work with most types of doors, windows, and other fixtures with a similar mechanism, such as drawers, cabinets, refrigerators, and more. Easy to Use: Small and portable without taking up space. The package includes a sensor, manual, warranty card, battery, adhesive backing, and support for four months of battery life (the insulation strip needs to be unplugged for the first use). Shipping: Shipping is complimentary within the lower 48 US States. We Do Not Ship to PO/APO Boxes, HI or Alaska We Do Not Ship Outside of the Continental US All items ship within 24-72 hours of Payment For large items that require Freight shipping a valid phone number is required to call and schedule your delivery Terms of Sale and Feedback: Feedback is extremely important to us and If you are satisfied with our transaction, please take a moment to leave Positive Feedback. YOUR Satisfaction is our #1 Priority! If there are any issues, PLEASE contact us BEFORE leaving a neutral or negative rating so that we may resolve any concerns. We PROMISE we can make you happy if you give us a fair chance. Returns / Concerns: All items qualify for returns within 14 - 30 days of receipt. Buyer is responsible for return shipping on any item that is not damaged Please be sure this is an item you want before making your purchase. Customer Satisfaction is our TOP priority! All items are IN STOCK at time of listing. Inventory changes constantly and it is impossible to maintain a perfectly accurate count of all items. Please do not penalize us if we have to issue you a refund! Thank You For Your Business!