Bosch GLL 5-50X Professional 5-Line Laser Level Measure Self-Leveling Free Ship
Model: Bosch GLL 5-50 Professional 5-Line Laser Level. Bright laser lines can be used in self-leveling mode or locked in manual mode for sloped applications. Bosch GLL 5-50 has a built-in alarm to warn when the device is out of range while in self-leveling mode.