HiLetgo 20pcs 5MM Photo Transistor Phototransistor PT334-6C Photo Transistor Phototransistor Round F5 3V
- Detects with infrared light, barely interfered by stray light..
- Schmidt trigger is used to ensure good waveform and stable signal..
- Signal output indication. (when blocked: output low level, signal indicator light is on).
- for Copier, Printer, Facsimile, Ticket Vending Machine, Opto-electronic Switch, Motor Speed Detection, Pulse Counter..