The Pulsar Thermion 2 XQ50 Riflescope is designed for use both at night-time and during the day and provides exceptional image quality even in adverse weather conditions. See perfectly with the Thermion 2 Riflescope that can see through fog, smog, rain, and other obstacles like branches, tall grass, dense foliage, etc. that are known to hinder target detection. Unlike riflescopes based on electrical-to-optical converters, thermal imaging riflescopes do not require an external light source and are resistant to high levels of illumination. The Thermion 2 thermal riflescope is perfectly suited for night hunting, observation, trail orientation, identifying hazards, etc. For an incredible thermal imaging optic, look to the Pulsar Thermion 2 XQ50 Riflescope for your next hunting adventure.