| Switch Style | Through-beam |
|---|---|
| Suitable For | Smoke alarms |
| Current Type | DC |
| Features | Effective Object Detection |
| Finish | Black |
| Maximum Amperage | 70mA |
| Current Rating | Transmit (20mA) |
| Material | Plastic |
| Operation Method | Light Interruption (Infrared) |
| Type | Photoelectric Switch |
| Coil Voltage | DC 5V |
| Model | QT30CM |
| Application | Security systems |
| Brand | Unbranded |
Check the listing for details. InfrFor ared Photoelectric Sensor QT30CM 4 Set for Precise Object Detection. Condition: New. Listed at 13.83 USD. 4 pair Through-beam Photoelectric Switch. Sensing Distance: 2-30cm. Sensing: Light Interruption (Infrared). Wiring: red wire to positive pole, black wire to ground, yellow (white) wire to signal. The real color of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor and light brightness.