| Filter Model No. | BY502T |
| Optical Class | 1/1/1/2 |
| Viewing Area(mm) | 100x50 |
| Size of Cartridge(mm) | 120x95x12 |
| UV/IR Protection | 16 |
| Dark State | DIN5-9/9-13 |
| Light State | DIN4 |
| Shade Control | Variable adjust by external knob |
| Arc Sensors | 4 |
| Power On/Off | Automatic |
| Power Supply | Solar cells+2*CR2032 lithium battery |
| Replace Battery | YES |
| Switch Time | 1/30000S |
| Sensitivity Control | Variable adjust by external knob |
| Delay Time(Dark to Light) | 0.1~1.0S variable adjust by external knob |
| Grind Function | YES |
| Low Volume Alarm | YES |
| ADF self-Check | YES |
| Low TIG Amps Rated | 5 amps (DC/AC) |