| Product specification | |
| Series of products | BB08-D22S-AL-□ | 
| I/O ports | Port:M8 3 pins | 
| Parameter | |
| Types of Buttons | Single-hole indicator light | 
| Button size | φ22 | 
| Shell size (mm) | 80.00L×50.50W×62.20H | 
| Button color | Red (R), Green (G), White (W) | 
| Operating voltage | DC24V |