On the 2GIG GC3, zones 99 and 100 can be configured to be cross zones.

Cross zoning helps with false alarm reduction and unnecessary police dispatches. Typically, cross zoning is used with a motion sensor in a high traffic area combined with either a second motion sensor or a contact sensor nearby. This setup allows it so that if the motion sensor detected a non-human motion event and triggered a false alarm, the monitoring station would not dispatch. If the door or window opened and the motion sensor activated within the same minute or two, it is more likely a real alarm.

For example: 

• If one zone (with cross zoning enabled on zone attributes) is activated, it will not send an alarm to the monitoring station, but if both zones (that have cross zoning enabled) are activated before the cross zone timer expires, it will trigger an alarm.
• If this second zone is not triggered during the cross zone timer period, the event Cross Zone Not Verified is sent to the monitoring station, letting them know that one zone tripped but not both. This is a non-alarm event forwarded to the monitoring station.

Note: CO and Fire Zones cannot be used in zones 99 and 100 as cross zones. 

To configure cross zoning on a 2GIG GC3 using the keypad:

1. Go to the home screen.
2. Tap System Settings.
3. Enter the installer code.
4. Tap Installer Toolbox. 
5. Tap System Configuration.
6. Tap Panel Programming. 
7. Tap Go to question.
8. Tap [26][Go] to navigate to Q26 Cross sensor zones 99-100 to configure zones 99 and 100 to be cross zones on the panel. 
9. Tap either Enabled or Disabled. 
10. Tap  to navigate to Q27 Cross sensor timeout to configure the cross zone time. 
11. Tap to select the desired time in seconds. 

To configure cross zoning using the Partner Portal:

Note: It is recommended to disarm the panel before making any panel programming changes. 

1. Log into the Partner Portal.
2. Find the customer account.
3. Click Remote Toolkit.
4. To configure zones 99 and 100 to be cross zones on the panel:
   1. In the Command Catalog, click to expand Arming Settings.
   2. Click Q26: Select cross sensor 99-100. 
   3. Using the New value dropdown menu, select either Enable or Disable. 
   4. Click Change. 
5. To configure the cross zone time:
   1. In the Command Catalog, click to expand Arming Settings.
   2. Click Q27: Enter cross sensor timeout. 
   3. In New value, enter the desired maximum time (10-120) in seconds allowed between triggering both cross sensor zones.
   4. Click Change. 

To configure cross zoning using the MobileTech app:

Note: It is recommended to disarm the panel before making any panel programming changes. 

1. Log into the MobileTech app.
2. Find the customer account.
3. Tap Remote Toolkit.
4. Tap Command Catalog. 
5. To configure zones 99 and 100 to be cross zones on the panel:
   1. Tap to expand Arming Settings.
   2. Tap Q26: Select cross sensor 99-100. 
   3. Using the New value dropdown menu, select either Enable or Disable. 
   4. Tap Change. 
6. To configure the cross zone time:
   1. Tap to expand Arming Settings.
   2. Tap Q27: Enter cross sensor timeout. 
   3. In New value, enter the desired maximum time (10-120) in seconds allowed between triggering both cross sensor zones.
   4. Tap Change.