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

View instructions for replacing your motion detector's batteries.

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

Learn how to fix a Qolsys motion detector cover.

View instructions for replacing your motion detector's batteries.

View instructions for replacing your motion detector's battery.

View instructions for replacing your motion detector's battery.

View instructions for replacing batteries in the motion detectors most commonly paired with the IQ Panel.

View instructions for replacing your sensor battery.

View instructions for replacing your sensor battery.

View instructions for replacing your motion detector's batteries.

Simon XTi Motion Detector Batteries

Interlogix Motion Detector Batteries

Image Sensor - Frequently Asked Questions

Learn how to fix a sensor tamper error.

GC3 - Motion Detector Batteries

Image Sensor - What is it?

View instructions for replacing your motion detector's batteries.

Qolsys Motion Detector Installation

Before fixing your motion detector's cover, select your panel.