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How Traffic Laser Works
To measure speed, traffic laser sends out a beam of pulsed infrared light. The beam is tightly focused: at a range of 1000 feet, it’s only about four feet wide.
Can I say “a distance of” here?
Source: the Owner’s Manual of Valentine One, a car radar detector
To measure speed, traffic laser sends out a beam of pulsed infrared light. The beam is tightly focused: at a range of 1000 feet, it’s only about four feet wide.
Can I say “a distance of” here?
Source: the Owner’s Manual of Valentine One, a car radar detector
