| Characteristics | |
| Мodel | ТА-02-421 |
| Light filter type | auto |
| Size of light filter cartrige (mm) | 110х90х8 |
| Inspection hole size (mm) | 92х42 |
| Obscuration value under light condition (DIN) | 4 |
| Obscuration value under dark condition (DIN) | 9-13 |
| Time of dimming (sec) | <1/25000 |
| Time of translucence (sec) | 0,2 |
| Protection from UV and infrared rays (DIN) | 16 |
| Amount of sensors | 2 |
| Power source | solar and lithium batteries |
| Mask case materiel | shockproof and fireproof plastic |
| Working temperature (°С) | -5/+55 |
| Weight (kg) | 0,45 |
| Warranty (mon) | 24 |