The US has involved a low-visibility drone RQ-170 Sentinel, which is considered one of the most secretive devices in the ...

Ramona is scheduled to receive its second early fire detection device. The first Sentinel FD3 device will be installed on the San Diego Country Estates Tank 3 in mid to late August, and potential ...

San Diego Country Estates has been chosen as the location of a new early fire detection device. Delphire Inc. has received a $25,000 grant from the Caltech Rocket Fund that will be used to cover the ...