Get the Best Qolsys Window Sensors: Reviews & Comparison

  • Post published:December 8, 2022

Qolsys window sensors are a great way to enhance the security of your home and protect your family and property. These sensors are designed to detect the opening and closing of windows, providing an extra layer of protection against intruders. This article will discuss the best Qolsys window sensors on the market, exploring their features and benefits. We will also look at how these sensors can be used in a variety of different scenarios to maximize your home security.

1QOLSYS IQ DW MINI S-LINE Encrypted Door/Window Sensor QS1135-840…
2Qolsys QS1138-840 IQ Wireless S-Line Shock Sensor…
3Interlogix Ecolink TX-E251 Long Range Door/Window Sensor Qolsys, …
42gig DW10 Thin Door Window Contact ETL Listed…
5QOLSYS IQ DW Recessed-S Encrypted Door Sensor QS1134-840…

QOLSYS IQ DW MINI S-Line Encrypted Door/Window Sensor QS1135-840

Our Verdict

  • Qolsys QS1135-840

Qolsys QS1138-840 IQ Wireless S-Line Shock Sensor

Our Verdict

  • Qolsys QS1138-840

Interlogix Ecolink TX-E251 Long Range Door/Window Sensor Qolsys,

Our Verdict

  • Pre-installed CR2 battery with pull tab for quick and easy installation. 10-year battery life (based on typical usage)
  • Compatible with Qolsys/GE & Interlogix 319.5 MHz wireless protocol. (Crystal based sensor)
  • Brown case cover and magnet covers included
  • Maximum RF output power for superior range performance and longer-range applications
  • Two reed switches for additional flexibility during installation

2gig DW10 Thin Door Window Contact ETL Listed

Our Verdict

  • For use with the 2GIG Alarm System
  • For Narrow Application Sensor on .75″ Wide Fully Supervised Rare Earth MagnetSupports Internal and External 345 MHz ETL Listed
  • Equipped with cover tamper for additional security
  • Can be installed on doors windows and many other objects that open and close
  • Has an external input that accepts N/C dry contact devices

QOLSYS IQ DW Recessed-S Encrypted Door Sensor QS1134-840

Our Verdict

  • Qolsys QS1134-840

How To Choose Your Qolsys Window Sensors

Use our buying guide before you purchase Qolsys Window Sensors. Some features are necessary, while others may not be as important to you.:

Quality of the Unit

The product should be high-quality, durable, and last for more than one year. The best way to assess the quality is by reading reviews from other customers who have purchased and used the product.

Is the Unit Worth the Price Tag?

Price is not the only factor to consider while buying a product, but it’s an important one. You should compare how much you’re willing to spend on the item with what other sellers are offering similar products for. Keep in mind that cheaper isn’t always better – quality should also be taken into consideration.

If the price difference is significant, choose the more expensive option as it is likely to be of better quality and last longer than its cheaper counterparts.


Before you buy a product, always double-check that the model you want includes all of the features you desire! If you’re unsure about any of them, read reviews from customers who have used those specific features. This way, you can get an idea of whether or not they would be useful to YOU.


There are a lot of risks involved while buying products online. Sometimes, the product doesn’t reach you, or it comes in damaged condition. So make sure that the seller offers a guarantee on the product.

Customer Support

Last but not the least, make sure that customer support is available for you in case of any issues or queries regarding your purchased product. If there is no help desk support, then you can always go to forums and review sites to find answers to any doubts.

Frequently Asked Questions

1. What features do Qolsys window sensors offer?

Qolsys window sensors offer a range of features, including motion detection, tamper detection, and wireless communication. Additionally, they come with adjustable sensitivity settings, allowing users to customize their system to their needs. Additionally, they come with low battery alerts, so users can quickly replace their batteries as needed.

2. How do Qolsys window sensors detect intrusions?

Qolsys window sensors detect intrusions by using a magnetic switch that is triggered when the window is opened or closed. The sensor detects changes in the magnetic field when the window is opened or closed and sends a signal to the system, alerting it of an intrusion.

3. What is the range of the Qolsys window sensors?

The Qolsys window sensors have a range of up to 500 feet (152 meters).

4. What type of batteries are used to power Qolsys window sensors?

AAA batteries are typically used to power Qolsys window sensors.

5. Are Qolsys window sensors compatible with other home security systems?

No, Qolsys window sensors are not compatible with other home security systems.

Leave a Reply