Easy InstallationThe door sensor chime and receiver come pre-paired and ready to use right out of the box. No tools required. Simply plug the receiver into a standard outlet, peel off the adhesive backing on the sensor, and stick it onto any door or window.
Long Range & ExpandableThe door chime sensor has an 800ft operating range, reaching every corner of your home or business. Each door open chime can be paired with as many sensors as you need, and you can assign a different chime to each one, so you'll always know exactly which door or window was opened.
Long Ring & Short Ring ModesThe long ring mode keeps ringing continuously, great for noisy places or scaring off intruders, so you'll never miss a door open alarm. When you want things quieter, just switch to short ring mode for a quick heads-up without the noise. Flip between them anytime you like.