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"Buy HOA0149-001: Photointerrupter Reflective Phototransistor 4 Pin Side Looker (Manufacturer: Microswitch/Honey) from Jameco Electronics. Lowest prices guaranteed. Same-day shipping."^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.jameco.com/1/1/3734-hoa0149-001-photointerrupter-reflective-phototransistor-4-pin-side-looker.html>