Davis Instruments Radar Reflector Emergency. The Davis Emergency Radar Reflector is a compact lightweight and economical unit that disassembles and stows flat for storage. When needed it pops open to 11.5" diameter (29 cm) and installs in seconds. Its three perpendicular planes reflect radar from all directions. Made of special plastic-metal foil laminate. Resists corrosion and peeling. Specifications for Davis Instruments Emergency Radar Reflector: Manufacturer: Davis Instruments Color: Black Package Contents: Davis Instruments Emergency Radar Reflector Davis Instruments 151: Radar Reflector Emergency