Door Window Sensor,Smart Home Antitheft And Antiintrusion Closed Objects,Entry Sensor, Detects Opened and Closed Doors or Windows Feature: Multiple uses: Alarm sensors can be installed on front doors or windows, as well as on garage doors, liquor cabinets, front doors, safes, pet doors, etc. Make Your Doors and Windows Smarter: When you leave home, if the doors and windows are opened or invaded by external objects, their 130 dB sound can scare away bad people. Compact and compact appearance: Reasonable size design and optimized internal structure bring you comfort, beauty, and enjoyment. Convenient installation: No difficult installation tools are required, installation is fast, low power gate sensors, ultra-long battery life, and frequent replacement is avoided. Door bell mode: Short press the SET key, and when a customer pushes the door in, the door magnet will ring Ding Dong Ding Dong... sounds, prompting someone to come in and out. Product parameters: Product type: Door Window Sensor Color: White Material: ABS Package size:7.5x5x2.5cm/2.95x1.96x0.98inch Gross weight:39g/0.08lb The Package Include: 1x Inductor 1x Instructions Tarmeek Door Window Sensor,Smart Home Antitheft And Antiintrusion Closed Objects,Entry Sensor, Detects Opened And Closed Doors Or Windows on Clearance Smart home made simple: With unique design, we guarantee high quality smart home products, just to bring you the best experience. Wide application and simple operation. Appearance settings are very personal. High Quality: The product is made of high quality material, durable and not easy to be damaged or broken during use. They are durable and can serve you for a long time. House Warming Gifts New Home: This product is ergonomically designed, which is more convenient and comfortable to use. this product can improve your quality of life and make your life more beautiful and interesting. It is indispensable at home. Suitable as a housewarming gift for your friends and relatives. 【100% SATISFACTION REFUND】 Thank you very much for choosing our product, we hope you are satisfied with the product and service you received. If you are not satisfied, please feel free to contact us, we will reply in time and give you a satisfactory solution.