Robert Bosch Tool Corp.’s GLL 150 ECK exterior laser kit includes a 360-degree exterior line laser, receiver, 8-foot tripod, grade rod and carrying case. It has a 530-foot diameter range for horizontal leveling and grading. The GLL 150 ECK may be operated by one person and the line flashes to alert an out-of-level condition. An automatic pendulum locks when the unit is turned off for protection during transport.
