High-performance micro photoelectric sensor with 5m detection range, capable of detecting small opaque objects. Built-in multi-protection circuits ensure long-term reliability. Perfect for logistics sorting lines, production lines, unmanned workshops, and industrial automation. Flexible installation with durable wires for extended use.
Specification
| Model |
ATO-FDT125MNO-TZ |
ATO-FDT125MPO-TZ |
| Output Control |
NPN open-circuit load: Max. 30VDC Load current: Max. 100mA Voltage drop: Max. 0.7VDC |
PNP open-circuit output voltage: Voltage Ue - 0.7V Load current: Max. 100mA |
| Detection Distance |
5m |
| Detectable Objects |
Opaque objects with diameter ≥12mm |
| Rated Voltage |
DC10~30V |
| Operating Voltage |
10-30VDC |
| Rated Current |
20mA |
| No-Load Current |
Max 40mA |
| Load Current |
150mA |
| Response Time |
Max 5ms |
| Light Source |
850nm Infrared LED (Modulated) |
| Operation Mode |
Selectable Light-On/Dark-On Mode via Model Selection |
| Indicator light |
Operation indicator light: Red |
| Protection circuit |
Short-circuit protection, reverse polarity protection, overvoltage protection |
| Ambient brightness |
Under sunlight: Max. 11000Lux; Under fluorescent lighting: Max. 3000lux |
| Ambient humidity |
30~910RH, Storage: 30~910RH |
| Ambient Temperature |
-20°C to 60°C (non-freezing conditions); -25°C to 70°C during storage |
| Housing Material |
Housing: Black PC; Lens: PC optical material |
| Cable Dimensions |
Transmitter: 3.4 × 0.14 mm²; Receiver: 3.4 × 0.14 mm² |
| Protection Rating |
IP65 |
| Weight |
0.1 kg |
| Warranty |
1 year |
Features
- High Sensitivity and Stability: Infrared through-beam design with strong light interference resistance ensures fast response and reliable performance for precise detection in barrier gates and automation systems.
- Easy Installation: Compact 45°clip-on structure fits easily into limited spaces and can replace common square or round photoelectric sensors.
- Wide Applications: Suitable for barrier gates, scanners, garage door openers, and logistics sorting lines in industrial automation.
- Comprehensive Protection: Built-in reverse polarity, short-circuit, and overvoltage protection ensure safe and stable operation.
- Durable Cable Design: High-toughness wire provides strong conductivity, high flexibility, and long service life.
Dimension

Wiring Diagram

Application
This mini infrared through beam photoelectric switch is ideal for use in chemical processing, textile production, automated assembly lines, unmanned workshops, CNC machinery, and elevator systems, offering reliable object detection and stable performance across diverse industrial environments.

Tips: How to enhance detection stability and lifespan?
Ensure precise optical axis alignment between the emitter and receiver to maintain maximum beam efficiency. Keep the optical surfaces clean to prevent IR signal attenuation caused by dust or contamination. Avoid mounting positions exposed to strong ambient light or electrical noise, and use a stable, low-ripple power supply to reduce performance drift. Proper mechanical fixation also helps minimize vibration-induced misalignment over long-term operation. The ATO micro IR through beam photoelectric switch incorporates a modulated 850nm emitter, fast 5ms response, and reinforced protection circuitry to maintain stable detection performance and extend service life in continuous industrial use.