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The Bosch GLL50-40G is a self-leveling cross-line laser that projects one horizontal and one vertical line for squaring, leveling and layout work. Its IP64 housing resists dust and splashes, which is rare in this class and makes it more forgiving on job sites than open-frame lasers. It runs on AA batteries, weighs about 1.4 lb and mounts on a tripod or wall bracket. Accuracy is rated at ±3/16 inch over 30 ft, and it works within a 41–104°F range, so it is a fair-weather tool rather than a cold-weather one.
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Lowest price we've seen: $233.59 on Nov 11 at Amazon. Tracked across 2 stores since Nov 11.
Owners of Bosch cross-line lasers generally praise the bright, easy-to-read lines and simple setup, and the rugged housing is a common plus. Complaints tend to focus on battery life and on accuracy that is fine for layout but not for precision work.
The Bosch GLL50-40G is a self-leveling cross-line laser that projects a horizontal and a vertical laser line. It has two laser lights and a measurement distance of up to 100 feet. Accuracy is 0.18 inches.
The housing is rated IP64. The laser runs on AA (LR06) batteries. It can be mounted on a tripod or on a wall, and it operates at temperatures from 41°F to 104°F.
