- Students evacuating during a fire drill
- Resetting the fire alarm system
- Fire-Lite BG-10 at Roop Hall
- Fire alarm at United States Botanic Garden [02]
- Fire alarm at United States Botanic Garden [01]
- Fire alarm at United States Botanic Garden [03]
- Potomac Hall fire alarm control panel
- Simplex fire alarm pull station
- Capitol Heights station entrance pylon
- Benning Road station entrance pylon
- Minnesota Avenue station entrance pylon
- Federal Center SW station entrance pylon [01]
- July 4 banner at Federal Triangle station
- Eastern Market station entrance pylon
- Two strobes from different manufacturers
- Sign on old Watha T. Daniel Library
- SimplexGrinnell van
- Chain marker in the snow
- Deanwood station [03]
- Cheverly station [03]
- Court House station [02]
- Court House station entrance pylon
- Entrance to Capitol South station
- Orange Line train at New Carrollton
- New Carrollton station [04]
- Orange Line going over a hill
- Payphones at Landover station
- Orange Line train arriving at Cheverly [02]
- Inbound platform at Cheverly station
- Platform edge tiles at Cheverly
- 6000-Series railcar at Deanwood
- Platform pylon at Minnesota Avenue station [02]
- Platform pylon at Minnesota Avenue station [01]
- Eight-car mark at West Falls Church station
- Platform pylon at Dunn Loring station [04]
- Platform pylon at Dunn Loring station [03]
- Fire alarm pull station
- MBTA State station
- Red Line platforms at Park Street station
- Security camera at Quincy Adams station
- MBTA Chinatown station
- Activated fire alarm pull station at MBTA Chinatown station
- Stair to Red Line at Park Street station
- Washington Metro chain marker
- Sign for Hawk Security Systems
- Interior of Washington Metro car 4090
- Water tower in Northbrook, Illinois
- Fire alarm pull station at the Lincoln Memorial
- Simplex pull station at an apartment building
- Fire alarm strobe mounted through a glass window
- Fire alarms at Dick's Sporting Goods
- SpectrAlert Advance horn/strobe at Big Lots
- Fire alarm pull station at Wawa in Glen Burnie
- ADT pull station at White Marsh Mall
- 490 L'Enfant Plaza pull station
- Simplex TrueAlert at Mars Supermarket
- Simplex pull station in Charles Town, West Virginia
- Fire alarm at Martin's in Waynesboro
- Fire alarm pull station at New Street parking garage [01]
- Fire alarm speaker at Maryland House
- Wheelock fire alarm bell
- Vintage Acme pull station [02]
- Vintage Acme pull station [01]
- Old and new fire alarms [02]
- Mirtone fire alarm pull station
- Edwards fire alarm pull station [01]
- Old and new fire alarms [01]
- Old and new pull stations
- Old and new fire alarms [03]
- Edwards fire alarm pull station [02]
- Old and new fire alarms [04]
- Wheelock Exceder at The Flats at Shady Grove
- Simplex pull station at Martinsburg train station
- Railroad crossing signal at Route 608 [02]
- Railroad crossing signal at Route 608 [03]
- Railroad crossing signal at Route 608 [01]
- Fire alarm at Montgomery College [02]
- Fire alarm at Montgomery College [03]
- Fire alarm at Montgomery College [01]
- Fire alarm at Montgomery College [04]