brand logo

All ProductsSecurity & EnvironmentalDoor/Window Sensor

product QS1135-840.png
product QS1135-840.png
product QS1135-840/QS1135-840_1.jpg
product QS1135-840/QS1135-840_2.png
product QS1135-840/QS1135-840_3.png

Door/Window Sensor

Call Now For A Quote

The Door/Window Sensor consists of a Magnet and a Transmitter that sends an encrypted signal to the control panel whenever a door, window, or anything in between opens or closes.

Login To Purchase

Customize Or Professional Installation?

Want to customize the package or have your system set up by a licensed professional installer? Click here to speak with a Helm Expert!

Contact Us

Availability: In Stock

SKU: QS1135-840

Features
  • Operates using proprietary Encrypted Wireless Sensor Technology
  • Easily installed & mounted
  • Range of up to 100ft (depending on household layout and interference)
  • Ability to create automation rules based upon doors or windows opening
  • Receive notifications on your mobile device when a door or window is opened/closed
  • Battery life over five years on two (2) 3V CR2032 batteries