4 x 360 Laser With the remote control, the H and V keys can be controlled individually to select two horizontal 360 laser beams and two vertical 360 laser beams. In self-leveling mode, the laser tool automatically levels and indicates off-level using a smart pendulum. The laser beam flashes quickly and the tool beeps to alert you when it exceeds the 3 self-leveling range. In manual mode, you can lock the laser at any angle for better use. Adjustable Brightness Green Light and Pulse ModeCan adjust the three brightness modes of the laser via the M key. In the brightest mode, the brightness of the laser line increases and flickers quickly, which is suitable for use in bright environments. The laser working range with normal brightness can reach 30m, the accuracy is 2mm/10m. Press the pulse mode button to activate external pulse mode, which extends the laser range to 50 m when used with the linear laser detector. IP54 protection rating This laser level has a high-quality housing and a removable metal window, resistant to dust, water and shock. Professional IP54 protection grade, can withstand harsh working conditions, to ensure that your work is carried out normally. It will be your first choice in professional and cost-effective laser level.