1. Effortless Calibration-Free Operation: Utilizing advanced pre-calibration technology, this device is ready to use straight out of the box, eliminating the need for manual adjustments and ensuring swift, accurate setup, thereby streamlining workflow and boosting efficiency.<br> 2. Precision Horizontal & Vertical Alignment: Incorporating a sophisticated laser emission system, it delivers precise horizontal and vertical lines for exact leveling and alignment in construction, carpentry, renovation, and installation tasks, with minimal error margins.<br> 3. Robust Build Quality: Encased in sturdy aluminum or reinforced plastic, it boasts excellent shock and drop resistance, maintaining stability and performance in harsh working conditions, prolonging its lifespan.<br> 4. Versatile Applications: Suited for a wide range of applications, including construction projects, home renovations, pipe installations, photography surveys, machinery installations, and more, it's an ideal tool for professionals and DIY enthusiasts alike. 5. Portable & Flexible Mounting: Compact and lightweight, it comes with versatile mounting options like tripod compatibility, allowing for easy setup on various surfaces and enhancing usability flexibility.<br> Package Included: 1*（A Red Beam Laser Calibrator） 1*（14250 battery） 1*（A USB charger）