Onick RM-55 monocular day and night infrared night vision sight adopts advanced uncooled vanadium oxide or polysilicon and advanced imaging circuit to optimize the optical system. The product appearance and structure design is optimized based on ergonomics. The product has enhanced waterproof design and reaches IP67 protection level. Low power consumption design, using a single built-in rechargeable battery, the continuous working time can reach more than 5 hours, meeting the requirement of using the battery all night without replacing it. In addition, it has advanced fast startup performance and can quickly image in 3 seconds after booting, which significantly improves the user's quick response ability. The product adopts a high refresh frequency design, allowing the operator to gain the ability to observe fast-moving targets. It is equipped with a high-quality objective lens, has high performance, is not afraid of strong light, is safe and reliable, and can be installed on a tripod for long-distance night observation. The night observation distance can reach 1000 meters, and can be connected to cameras, camcorders, and wireless image transmission equipment.