View instructions for replacing your sensor's batteries.

Sensor Malfunction: View instructions for resolving a 2GIG-DW10E-345 Sensor malfunction.

View instructions for replacing your sensor battery.

Step-by-step troubleshooting guide for resolving malfunctions on the Honeywell R-D/W 5818MNL recessed door/window sensor, including low battery, misalignment, and connectivity issues.

Learn how to troubleshoot and resolve sensor malfunctions on the DW20-345 Recessed Door Contact, including steps for checking the battery, signal strength, and alignment.

Learn how to replace the CR2 3-volt lithium battery in your Honeywell 5818MNL Recessed Door/Window Sensor to keep your Brinks Home™ system fully operational.

Learn how to replace the CR2032 battery in your 2GIG-DW20R-345 Door/Window Sensor to resolve low battery notifications on your Brinks Home™ system panel.

View instructions for resolving a sensor malfunction.

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

View instructions for resolving a sensor malfunction.

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

Get started with your new door/window sensor.

Learn how to fix a sensor tamper error.

View instructions for resolving a sensor malfunction.

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

Get started with your new door/window sensor.

Learn how to fix a sensor tamper error.

View instructions for resolving a sensor malfunction.

View instructions for replacing your sensor's batteries.

Get started with your new sensor.