Green/Red Laser Calibrator, Aluminum Alloy Construction, Pre-Calibrated Laser Level with 18 Adapters, Cross-Border Aiming Instrument 1. Calibration-Free Operation: Pre-calibrated for immediate use—no manual adjustment required. Ensures fast, accurate setup and improved workflow efficiency. 2. Precision Horizontal and Vertical Lines: Projects clear, stable laser lines for accurate leveling and alignment in construction, carpentry, renovation, and installation tasks. 3. Durable Build: Made from aluminum alloy or reinforced plastic for shock resistance and reliable performance in demanding environments. 4. Wide Application Range: Suitable for construction, home improvement, plumbing, photography, machinery installation, and more—ideal for professionals and DIY users. 5. Portable Design with Flexible Mounting: Compact, lightweight, and tripod-compatible for easy setup on various surfaces. Package Includes: 1 × Red Beam Laser Calibrator, 1 × AA (14250) Battery, 1 × USB Charger