Watch our video on how to install a door/window sensor.

IQ Panel - Door Window Sensor Batteries

View instructions for replacing batteries in your door/window sensors.

DSC Door Window Sensor Batteries

Before replacing your battery, select your door/window sensor.

View instructions for resolving a sensor left open error.

View instructions for replacing batteries in your door/window sensors which are commonly paired with the Simon XTi.

View instructions for replacing your door/window contact sensor's batteries.

Get started with your new door/window sensor.

Get started with your new 2GIG-DW10E-345 Door/Window Sensor.

Get started with your new sensor.

Get started with your new QS1135-840 Door/Window Sensor.

Get started with your new door/window sensor.

Get started with your new door/window sensor.

Get started with your new door/window sensor.

Learn how to fix a QS1135-840 Door/Window Sensor error.

Learn how to fix a sensor tamper error.

Learn how to connect the 2GIG-DW10E-345 Sensor to the GC2 Panel with this step-by-step guide.

Learn how to fix a sensor tamper error.

Learn how to fix a sensor tamper error.