---Elegant design: The Heatmiser Window and Door Contact is crafted with an aesthetically pleasing design, perfectly blending with any home or office interior. Its compact and slimline design ensures minimum intrusion while maintaining optimal performance. ---Superior battery life: This product is engineered to optimize power efficiency, offering an extended battery life of up to two years. You can count on it for long-lasting performance, reducing the hassle of frequent battery replacements. ---Easy installation: Heatmiser has designed the window and door contact for quick and hassle-free installation. It comes with easy to follow instructions and does not require any professional help or special tools, making it perfect for diy enthusiasts. ---Smart integration: The device can be seamlessly integrated with other Heatmiser devices.