View instructions for replacing your motion detector's batteries.

Learn how to connect the QS1231-840 Motion Detector to the IQ Panel 2 with this step-by-step guide.

Learn how to fix a QS1231-840 Motion Detector error.

View instructions for resolving a sensor malfunction.

View instructions for replacing your carbon monoxide detector's batteries.

View instructions for connecting a carbon monoxide detector to your panel.

Learn how to fix a sensor tamper error.

Learn how to fix a tamper error.

View instructions for replacing your door lock's batteries.

View instructions for connecting a door lock to your panel.

Learn how to fix a tamper error.

View instructions for replacing your door lock's batteries.

View instructions for connecting a door lock to your panel.

Our troubleshooting guide solves common problems associated with your smart thermostat.

View instructions for replacing your smart thermostat's batteries.

Get started with your new smart thermostat.

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.