If you encounter problems when installing your motion sensor. First check that:

• You properly removed the protective battery pull tab
• You took out and properly reinserted the batteries
• Your battery works You closed the motion sensor properly
• You are within range of your Link Essential during the installation, that is, within a maximum distance of X meters
• Your Link Essential is plugged in
• Your telephone is connected to the Internet

If none of these solutions resolves the problem, we invite you to contact us directly.