Founded in 1995, Zidong Machinery Manufacture Co., Ltd. is a professional China optical equipment manufacturer and designer in researching, developing and design all kinds of machines, equipment, lathe, machining, automatic and tools. ISO9001:2000 certified, we follow strict quality management criteria to provide high quality and cost efficient products. And We have gotten CE, GS and EMC approvals. We devote to carving CAD/CAM technology and CNC numerical control technology research OEM ophthalmic equipment and development. By adopting assembly technology and choosing fine materials, We have moved towards good stability and gets the position in advertisement, woodworking and metal mold industries.

The Virtually Indestructible Mouse, a silicone-based optical mouse, which features a unique combination of durability and soft, comfortable feel. The silicone-based material is impervious to most anything including water, coffee and cleaning solutions. The Virtually Indestructible Mouse is the perfect companion to the revolutionary Virtually Indestructible Keyboard! Lightweight. Adapt to most eyeglass frames and right or left side. Lens swings out of normal vision path when not in use. Durable polycarbonate clamp and frame. Lens of ophthalmic grade acrylic.Wear over prescription or safety glasses for detail work! Need your hands free for detail work, but still want accurate, efficient viewing? Bring your work closer into focus and reduce eye strain and fatigue with the OptiSIGHT(TM) Magnifying Visor. Features: precision optical grade acrylic prismatic lens; three different interchangeable lens plates in 1.75X, 2X and 2.5X magnification; can be worn over prescription or safety glasses; shields unwanted glare; made of high strength plastic. (USA) (OS-C OptiSIGHT Visor)

26x magnification. Auto-leveling for extreme accuracy and ease of set up. Accurate to 1/32-inch per 100-feet.
Durable wire-hung, magnetically dampened compensator with an automatic locking mechanism. Includes an aluminum tripod, 8-foot aluminum grade rod, kitbox, and plumb bob. DeWalt has introduced a new family of manual and self-leveling contractor-grade optical instruments for checking measurements over distances up to several hundred feet. The new instruments include the DW096PK 26X auto level. DeWalt's new instruments are designed for applications such as checking concrete forms, site layout, new deck and building additions, road construction, sewer and drain work, elevation control, landscaping, ground leveling, environmental, and agricultural work. 26x magnification. Auto leveling for extreme accuracy and ease of set up. Accurate to 1 32" per 100'. Durable wire hung, magnetically dampened compensator with an automatic locking mechanism. Includes an alumimum tripod, 8' aluminum grade rod, kitbox.

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