We are not currently shipping to Puerto Rico. Instructions 1) Place the instrument on the tripod, T-type wal mounting bracket or lifting platform as needed; 2) Push the main power switch forward to the ONposition and the machine starts to work. Thehorizontal window automatically opens and produces four horizontal laser rays; 3) Touch H key on the touch panel to control horizontal opening and closing; 4) Touch the V key on the touch panel once, open a vertical window with one click (tick), repeat again, the second vertical window opens, and the third touch closes two vertical windows; 5) Long touch the @ key for more than 3 seconds, and a click(tick) will be heard, and turning on the diagonal function. At this time, you can adjust it to the angle you want without alarm or flashing. Touch this key again for more than 3 seconds, with one click (tick) to release this Cfunction, the instrument works normally. Note: The positive and negative terminals of the battery are properly installed. Please remove the battery if it is not used for a long time. Please charge for more than 10 hours when you use it for the first time. Please turn off the main switch after use. Please use the charger that matches the machine to charge. Please use this machine in the environment where this machine is described. 1. After the receiving switch is tumed on, the blisters backlight will flash, which is a working signal indicating that it is in the recelving state, which is a normal phenomenon; 2. The laser line flashes to prove that the machine is not in the setting range, please adjust the level through the legs; 3.The laser line appears blurred. Please wipe the outer glass with a clean colton cloth.