Knowing that your home and business are safe from intrusion can provide instant peace of mind. This alarm kit installs in just a few minutes and can be personalized to suit your area, so you can rest easier. Receive alerts on your compatible smartphone or tablet when a window or door is open or when motion is detected. Compatible with most iOS and Android devices. Separate free app download is required. 110 decibel alarm helps scare away intruders. 24-hour backup battery power provides continuous security in the event of a power outage. Battery life will vary depending on the product configuration, product model, applications loaded on the product, power management setting of the product, and the product features used by the customer. As with all batteries, the maximum capacity of this battery will decrease with time and usage. Sets up in just moments with no tools or professional required. Versatile design allows expansion to suit larger spaces (additional pieces sold separately). Optional 24/7 monitoring is available (separate monthly fee required). Kit includes base station, keypad, contact sensor, motion detector and range extender. Backed by the manufacturer's 1-year limited warranty.