This calibrator is made of high-quality aluminum alloy material, which is lightweight, strong, corrosion-resistant, and has a long service life. The calibrator adopts high-precision and adjustment free design, utilizing infrared light and equipped with a straight tube for more convenient and accurate adjustment. The shipment includes a complete set of accessories, which can be used immediately upon arrival, making it easier to use. features: Made of high-end aluminum alloy material, it is lightweight, strong, corrosion-resistant, and has a long service life. Infrared calibrator, laser has long-distance, bright, and clear light, which better helps with calibration and adjustment. The calibrator adopts a highly precise and adjustment free design, using laser and equipped with a straight tube for more convenient and accurate adjustment. The battery compartment design is simple and beautiful, and the tail can be unscrewed for convenient and practical use. The shipment includes a complete set of accessories, which can be used immediately upon arrival, making it easier to use. Specifications: Name: Laser calibrator Material: Aluminum alloy Color: Red Battery: 1 * CR2 battery, 3V, 800mAh (inclusive) Power:<<; 5MW Diameter: 4.2 millimeters Product size: 178 * 18 * 18 millimeters/7.01 * 0.71 * 0.71 inches Item weight: 60 grams/2.12 ounces Packaging size: 195 * 104 * 30mm/7.80 * 4.09 * 1.18 inches Packaging weight: 131 grams/4.62 ounces