Remarks: 1. 20x. 25x. 30x; 3 choices of magnification can be chose and set according to the located place. 2. Objective dia 80mm with high twilight factor and available at viewing in day or night and high image quality. 3. Protective glass preventing from destruction. 4. Cast-aluminum body, resist fading, peeling chipping, cracking and rusting. 5. Weatherproof and suitable for indoor and outdoor, filled with nitrogen gas, fog-free and dust resistance.
