Using imported trough photocoupler sensor.
groove width 5mm.
Output status indicator lamp, output high-level lamp out, output low-level lamp on.
Output low level with occlusion; Output high level without occlusion.
Comparator output, signal clean, good waveform, strong driving ability, more than 15 mA.
Working Voltage: 3.3V-5V
Output Form: Digital Switch Output (0 and 1)
Fixed bolt holes for easy installation
PCB Size of Small Plate: 3.2cm x 1.7cm
Using a Wide Voltage LM393 Comparator.
