['【Self-Leveling & Manual Mode】 PREXISO Green laser level can be set in 2 modes, self-leveling mode and manual mode. “Unlock” side for self-leveling mode, the laser level 2 lines beam will be self-leveling within ±4° of horizontal, and the beam will blink when out of Self-leveling range, and the top LED light will turn red. Then, on the "Lock" side for manual mode, long press the button for 3S to turn on the laser in manual mode, It will provide a straight line in any angle you want.', '【Self-Leveling & Manual Mode】 PREXISO Green laser level can be set in 2 modes, self-leveling mode and manual mode. “Unlock” side for self-leveling mode, the laser level 2 lines beam will be self-leveling within ±4° of horizontal, and the beam will blink when out of Self-leveling range, and the top LED light will turn red. Then, on the "Lock" side for manual mode, long press the button for 3S to turn on the laser in manual mode, It will provide a straight line in any angle you want.', '【Self-Leveling & Manual Mode】 PREXISO Green laser level can be set in 2 modes, self-leveling mode and manual mode. “Unlock” side for self-leveling mode, the laser level 2 lines beam will be self-leveling within ±4° of horizontal, and the beam will blink when out of Self-leveling range, and the top LED light will turn red. Then, on the "Lock" side for manual mode, long press the button for 3S to turn on the laser in manual mode, It will provide a straight line in any angle you want.', '【Self-Leveling & Manual Mode】 PREXISO Green laser level can be set in 2 modes, self-leveling mode and manual mode. “Unlock” side for self-leveling mode, the laser level 2 lines beam will be self-leveling within ±4° of horizontal, and the beam will blink when out of Self-leveling range, and the top LED light will turn red. Then, on the "Lock" side for manual mode, long press the button for 3S to turn on the laser in manual mode, It will provide a straight line in any angle you want.', '【Self-Leveling & Manual Mode】 PREXISO Green laser level can be set in 2 modes, self-leveling mode and manual mode. “Unlock” side for self-leveling mode, the laser level 2 lines beam will be self-leveling within ±4° of horizontal, and the beam will blink when out of Self-leveling range, and the top LED light will turn red. Then, on the "Lock" side for manual mode, long press the button for 3S to turn on the laser in manual mode, It will provide a straight line in any angle you want.']