Window sensors are a critical part of any home security system. Learn how they work so you can ensure this last line of defense is there when you need it.

Window sensors can be the first warning that an intruder has breached the safety envelope of your home. Make sure you have the right types of window alarm sensors for your needs.

The YL-333 Magnetic Antitheft Alarm is an easy to install security alarm system for doors and windows. This battery-operated device works on the principle of magnetic proximity detection. It can ...

The new Ring glass alarm sensor is a cheap peripheral for the company's alarm system that alerts you when a window breaks.

The best home security systems are 1. SimpliSafe, 2. Ring, 3. Abode, 4. Arlo, 5. ADT and 6. Vivint. They include sensors, detectors, cameras and more.