Description
Product Introduction
Safety Light Curtain is a high-quality automatic control product. It adopts infrared scanning detection technology. No controller required; safety protection is achieved simply via transmitter and receiver.
It forms an infrared light curtain warning barrier. When people or objects enter the curtain zone, the control system quickly switches the output level signal to trigger load action, so as to realize safety protection.
Product Features
- Fast response for instant safety protection
- Multiple optional protection heights & sensing ranges
- Strong anti-interference capability against ambient light
- Compact housing, easy installation & wiring
- Short-circuit and reverse polarity protection
- IP65 protection for harsh workshop environments
- Original manufacturer, custom specifications available
Product Applications

| Technical Parameters of Through-beam Sensor | |||||||
|---|---|---|---|---|---|---|---|
| Detection Method | Model | Control Output | Detection Distance | Optical Axis Pitch | Number of Optical Axes | Detection Width | Minimum Detectable Object |
| Through-beam 4cm Pitch |
GM40-4N | N:NPN Open Collector Output P:PNP Open Collector Output J:Relay Contact Output |
≤3M | 40mm | 4 | 120mm | Φ50mm |
| GM40-4J | |||||||
| GM40-6N | 6 | 200mm | |||||
| GM40-6J | |||||||
| GM40-8N | 8 | 280mm | |||||
| GM40-8J | |||||||
| GM40-10N | 10 | 360mm | |||||
| GM40-10J | |||||||
| GM40-12N | 12 | 440mm | |||||
| GM40-12J | |||||||
| GM40-16N | 16 | 600mm | |||||
| GM40-16J | |||||||
| GM40-20N | 20 | 760mm | |||||
| GM40-20J | |||||||
| GM40-24N | 24 | 920mm | |||||
| GM40-24J | |||||||
| Through-beam 2cm Pitch |
GM20-4N | N:NPN Open Collector Output P:PNP Open Collector Output J:Relay Contact Output |
≤3M | 20mm | 4 | 60mm | Φ30mm |
| GM20-4J | |||||||
| GM20-6N | 6 | 100mm | |||||
| GM20-6J | |||||||
| GM20-8N | 8 | 140mm | |||||
| GM20-8J | |||||||
| GM20-10N | 10 | 180mm | |||||
| GM20-10J | |||||||
| GM20-12N | 12 | 220mm | |||||
| GM20-12J | |||||||
| GM20-16N | 16 | 300mm | |||||
| GM20-16J | |||||||
| GM20-20N | 20 | 380mm | |||||
| GM20-20J | |||||||
| GM20-24N | 24 | 460mm | |||||
| GM20-24J | |||||||
Based on the size of the smallest detectable object, there are three common types.

Product Description







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