View instructions for replacing your sensor's batteries.

Get started with your new sensor.

Learn how to fix a sensor tamper error.

View instructions for connecting a door/window sensor to your panel.

Learn how to fix a sensor tamper error.

View instructions for resolving a sensor malfunction.

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

View instructions for connecting a door/window sensor to your panel.

Learn how to fix a sensor tamper error.

View instructions for resolving a sensor malfunction.

View instructions for replacing your sensor's batteries.

Learn how to connect the QS1135-840 Door/Window Sensor to the IQ Panel 2 with this step-by-step guide.

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

IQ Panel 2 - Door Window Sensor Batteries

Replace Batteries - Qolsys Door/Window Sensors

Tamper Error: Learn how to fix a 2GIG Door/Window Sensor cover.

Learn how to fix a sensor tamper error.

Before fixing your sensor's cover, select your panel.