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Proximity sensor

The WT4 is SICK Optic Electronic's (Eden Prairie, MN) smallest photoelectronic proximity sensor. It measures about 1 sq" and weighs 20 g. The WT4 has a variable scanning distance of 20 to 80 mm (0.788" to 3.152") to allow sensing of any color object against any reflective background.
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FILED IN:  Controls  > Sensors
     

Its fast response time is 500 microseconds says the company.

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