This laser calibrator is made of high-grade aluminum alloy material, lightweight, high strength, corrosion resistant, and designed for long service life. Featuring high accuracy and an adjustment-free design, the calibrator utilizes infrared light with a straight tube for convenient and precise alignment. The shipment includes a complete set of accessories, ready to use upon arrival. Features: - Constructed from high-grade aluminum alloy, lightweight with high strength and corrosion resistance for extended durability - Infrared laser technology delivers bright, clear, and visible light over long distances, enhancing calibration precision - High accuracy and adjustment-free design uses laser light with a straight tube for easy and precise alignment - Battery compartment features a simple and sleek design; tail cap opens by unscrewing for easy battery replacement, offering convenience and practicality - Includes a full set of accessories for immediate use and enhanced usability Specifications: - Name: Laser Calibrator - Material: Aluminum alloy - Color: Red, Green (optional) - Battery: 1 x CR2 battery, 3V, 800mAh (included) - Output Power: <5mW - Diameter: 4.2mm - Item Size: 178 x 18 x 18mm / 7.01 x 0.71 x 0.71in - Item Weight: 60g / 2.12oz - Package Size: 195 x 104 x 30mm / 7.80 x 4.09 x 1.18in - Package Weight: 131g / 4.62oz Packing List: - 1 x Laser Calibrator - 1 x Screwdriver - 12 x Adjustable Adapter - 1 x Set of Screws - 1 x Wrench