The range of Symmetra’s Sentry Turret

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When playing against Symmetra I find myself killed by the turrets quite often, but when I try to use them to control a space myself I always mis-judge and leave them stranded out-of-range, to be easily picked off. They can notify me that a player is in the area, but never do much damage.

What is the range of the Sentry Turrets spawned by Symmetra? Are they only useful as very close-range traps/sensors, or do they have enough range to control a medium-sized space as well?

Best Answer

According to the wiki, which seems to be supported on this experiment by Reddit user mctiggs:

Symmetra places a small turret that fires a laser at targets within 10 meters

Turrets (image source: above reddit post)