This laser calibrator is made of high-grade aluminum alloy material, lightweight, high strength, corrosion resistance, and designed for long service life. Featuring a highly accurate, adjustment-free design, the calibrator utilizes infrared light with a straight tube for more convenient and precise alignment. The unit includes a complete set of accessories for immediate use upon arrival. Features: - Constructed from high-grade aluminum alloy for durability, lightweight handling, and corrosion resistance - Infrared laser technology delivers bright, clear, and visible light over long distances, enhancing calibration accuracy - Precision-engineered with a straight tube design for improved alignment convenience and accuracy - Simple and sleek battery compartment design; the tail cap unscrews easily for quick battery access - Includes a full set of accessories for immediate operation Specifications: - Name: Laser Calibrator - Material: Aluminum alloy - Color: Red, Green (optional) - Battery: 1 x CR2 battery, 3V, 800mAh (included) - Power: 3V