Threat Sensor

"A reflected energy device [which] tunnels through walls to highlight obscured enemies."

― Equipment menu description

Multiplayer
The Threat Sensor is a device in Doom (2016) that, when thrown, attaches to a surface and highlights enemies within its radius. Both allied and enemy players can hear it beep when they are nearby, and it can be destroyed with weapons fire. It is a multiplayer-only equipment item, and recharges after use. It is unknown why it takes so long to unlock (level 38) when it is basically just a weaker Threat Pulse.

Trivia
The image taken of the Threat Sensor says that its name is the 'UAC Threat Detector;.