Window sensors are a critical part of any home security system. When cameras fail, a window sensor becomes your last line of defense. Install them on all your windows, and you will know when an ...

IKEA's transition to Matter makes smart home automation affordable. Discover how to secure your home with their $8 door ...

This simple automation and low-cost window sensor helped me fix a big air conditioning issue.

Wireless Mini Door/Window Sensor from MaxOut™ Technology delivers the maximum allowable FCC output for maximum signal strength and transmission range. Every MaxOut wireless sensor is 100% tested for ...

Onvis has recently updated its door/window contact sensor, the CT3, to incorporate Thread technology. With this update, the Onvis CT3 contact sensor is now able to seamlessly integrate with HomeKit ...

$199.99Base kit includes hub, 3 door/window sensors, keypad and a motion sensor. Requires three-year professional monitoring contract. Professional monitoring monthly cost $24.99 and upSystems with ...

$24.99 and up$39.99 with cameras and $29.99 with other smart home devices. Monitoring costs are $10 more per month with professional installation. A monitoring plan is required with equipment purchase ...

Door sensors detect door position (i.e., open or closed) based on the precise gap between the magnet and the reed switch.

Our expert, award-winning staff selects the products we cover and rigorously researches and tests our top picks. If you buy through our links, we may get a commission. Trey Paul was a CNET senior ...

CNET’s expert staff reviews and rates dozens of new products and services each month, building on more than a quarter century of expertise. We originally tested and reviewed the Ring Alarm Security ...