LM393 Beam Photoelectric Sensor - Black
Download address: http://m5.img.dxcdn.com/CDDriver/CD/sku.217202.rar Features A long size: 32mm X 11mm X height 20mm width Second the main chip: LM393 infrared on the radio head Third the working voltage: DC 5 V IV characteristics: 1 having a signal output directions. 2 a single-channel signal output. 3 the output valid signal is low. 4 the sensitivity is not adjustable. 5 can be used for parts counting motor speed. . . . 6 the circuit board output switch! 00mA