This laser calibrator is made of high-grade aluminum alloy material, lightweight, high strength, corrosion resistant, and designed for long service life. Featuring a highly accurate, adjustment-free design, the calibrator uses infrared light with a straight tube for convenient and precise alignment. The shipment includes a full set of accessories, ready to use upon arrival.Features: - Constructed from high-grade aluminum alloy, providing lightweight durability, high strength, and corrosion resistance for extended use. - Infrared laser technology delivers bright, clear, and visible light over long distances, enhancing calibration accuracy. - Precision-engineered with a fixed focus and straight-tube design for reliable, maintenance-free performance and easy alignment. - Battery compartment features a simple, sleek design; the rear cap unscrews easily for quick battery access and replacement. - Complete accessory kit included for immediate use and enhanced convenience.Specifications: - Name: Laser Calibrator - Material: Aluminum alloy - Color: Red, Green (optional) - Battery: 1 x CR2 battery, 3V, 800mAh (included) - Power: 3V