I've been trying to think how to do this, but haven't really come up with anything.
Scenario: Bad weather is approaching and you take your family to the storm shelter. During the storm, tree falls and you are unable to get out.
What would be nice to do is enter a code on the keypad as you exit the door. That code would trigger a timer for 30 min. If timer is not disabled within 30 min, the alarm will trigger and send notice to central station that you need help.
I thought about caring a remote wireless trigger, but the reinforced concrete, steel door and earth makes it impossible to get a signal. Hence why I like the timer option.
Any suggestions?
Scenario: Bad weather is approaching and you take your family to the storm shelter. During the storm, tree falls and you are unable to get out.
What would be nice to do is enter a code on the keypad as you exit the door. That code would trigger a timer for 30 min. If timer is not disabled within 30 min, the alarm will trigger and send notice to central station that you need help.
I thought about caring a remote wireless trigger, but the reinforced concrete, steel door and earth makes it impossible to get a signal. Hence why I like the timer option.
Any suggestions?