This laser calibrator is made of high-grade aluminum alloy material, lightweight, high strength, corrosion resistant, and built for long service life. Featuring a highly accurate, adjustment-free design, the calibrator uses infrared laser light with a straight tube for convenient and precise alignment. The unit emits a bright, clear, and long-distance beam that enhances calibration accuracy. The battery compartment has a simple and sleek design, with a screw-off tail cap for easy access. Shipment includes a complete set of accessories, ready to use upon arrival. Features: - Constructed from high-grade aluminum alloy for durability, lightweight handling, and corrosion resistance - Infrared laser technology delivers a bright, clear, and long-range beam for improved calibration performance - Precision-engineered with an alignment tube for straightforward and accurate adjustments - Ergonomic and practical design with a screw-off rear cap for effortless battery replacement - Complete accessory set included for immediate use Specifications: - Name: Laser Calibrator - Material: Aluminum alloy - Color: Red, Green (optional) - Battery: 1 x CR2 battery, 3V, 800mAh (included) - Power: Infrared laser output