This laser calibrator is made of high-grade aluminum alloy, offering lightweight construction, high strength, corrosion resistance, and long service life. Designed for high accuracy with no adjustment required, the calibrator uses infrared laser light and includes 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 for durability, lightweight performance, and corrosion resistance - Infrared laser provides bright, clear, and visible light over long distances, enhancing calibration accuracy - Precision-engineered with an adjustment-free design; utilizes laser light with a straight tube for easy and accurate alignment - Simple and sleek battery compartment design; tail cap unscrews easily for battery 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) - Output Power: