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 uses infrared light with a straight tube for more convenient and precise alignment. The shipment includes a full set of accessories, ready to use upon arrival.Features: - Made of high-grade aluminum alloy material, lightweight, high strength, corrosion resistant, and built for durability. - Infrared laser technology delivers bright, clear, and long-distance visibility for improved calibration accuracy. - Highly accurate, adjustment-free design utilizes laser light with a straight tube for easier and more precise adjustments. - Battery compartment features a simple, sleek design; tail cap opens by unscrewing for easy access, ensuring convenience and practicality. - Includes a complete 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) - Power: Standard operation at 3V