Olympia TF 400 Door/Window Contact Set

This Olympia TF 400 Door/Window Contact Set is a perfect way to add an extra layer of security to your home. The set includes four wireless door and window contact sensors. Each sensor is equipped with a loud 90dB alarm to alert you to any intrusions. With the included batteries, you can rest assured that your home is secure. The sensors are easy to install, and they come with a user-friendly guide to set up your new security system. Perfect for windows and doorways, the sensors can be used both indoors and outdoors.