Sharp GP2A230LRS0F Reflective Sensor

"GP2A230LRS0F Series are standard, OPIC output, reflective photointerrupters with emittter and detector facing the same direction in a molding that provides non-contact sensing. This family of devices uses light modulation to reduce the affects of disturbing light, and the sensor is optimized to work in the selected focal distance. A 3-pin connector is included to allow remotemount or off-board designs." - Sharp