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Qolsys IQ Wireless S-Line Encrypted Door/Window Sensor

SKU: QS1133840

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Monitor The Status Of Any Open/Close Object

Monitor the open/closed status of a door, window, or other open/close objects with the Qolsys IQ Wireless S-Line Encrypted Door/Window Sensor. This wireless battery-powered sensor sends intelligent notifications to your panel, such as "door left open" when used with any compatible control panel/receiver (319.5 MHz wireless frequency), such as a GE/Interlogix Panel (NetworX, Simon, etc.) or a Qolsys IQ Panel. Notifications can be custom-named, so you can know exactly what's going on, for example, the sensor at your front door can be named "front door left open". For each sensor, you can also determine a unique chime type and turn voice prompts On/Off.

  • Provides intelligent notifications such as "door left open"
  • Compatible with 319.5 MHz wireless panels, such as GE/Interlogix or Qolsys IQ
  • "S-Line" encryption protects signals
  • Built-in tamper switch triggers alert if cover is removed
  • Easily mounts with included adhesive
  • Battery-powered, no wiring required

This sensor has a slimmer design than most door/window sensors, which will allow for discreet installations in various applications. Possible applications include: Swing door, sliding glass door, garage door, window, medicine cabinet, a safe, or another open/close object. Additionally, the sensor can be included in automation rules. For example, you could create a rule that will have your hall light turn on when the front door is opened, and another rule that adjusts your thermostat when a window is left ajar.

How It Works

The Door/Window Sensor consists of two components: the sensor and the magnet. The sensor installs on the door/window frame, and the magnet installs on the door/window itself. When the sensor detects the magnet has moved more than 1 inch, a notification is triggered.

Additional Features:

  • Can be programmed as "Safety Sensor" for medicine cabinets, safes, etc.
  • Using Alarm.com (requires optional subscription), you can get a text if your door or window is left open
  • Triggers alerts for tamper, tamper restore, alarm, alarm restore, and low battery


  • Door/Window Sensor
  • Batteries (pre-installed)
  • Mounting Adhesive
  • Instructions


  • Requires connection to a compatible control panel/receiver (319.5 MHz wireless frequency), such as a GE/Interlogix Panel (NetworX, Simon, etc.), Qolsys IQ Panel, Leviton 64-Zone Receiver for GE/Interlogix, Elk M1 Wireless Receiver for GE/Interlogix Crystal Transmitters, or other legacy 319.5 MHz system (all sold separately).
  • For indoor locations only.
  • Replace battery with exact replacement every 5 years.

Qolsys: All In One. Always Connected

Founded in 2010 with the mission to improve lives through technology, Qolsys develops innovative life safety, security, and home control devices built to set a higher standard for the industry. Qolsys products are flexible, intuitive, and reliable. As Qolsys says, "There's never been a better time to get connected."


  • Manufacturer Part #: QS1133-840
  • Compatible Control Panels: Qolsys IQ Panel 2 or other 319.5 MHz system
  • Code Outputs: tamper, tamper restore, alarm, alarm restore, low battery
  • Frequency: 319.5MHz
  • Transmitter Frequency: SECURE 319.5 MHz (S-Line)
  • Unique code ID
  • Supervisory Keep-Alive Interval: 70 minutes
  • RF Peak Field Strength: Typical 36000 uV/m at 3m
  • Operating Temperature: 0° C~49° C
  • Relative Humidity: 85% Max
  • Storage Temperature: -40 – 85° C
  • Battery: 3V Lithium CR2
  • Low Battery Threshold: 2.6V
  • Dimensions: .85(W) x .75(D) x 2.65(H) inches