The GL412N (single grade) lasers send a continuous, self-leveled 360-degree laser reference over your entire work area, and have a wide grade range so they can be used in a variety of slope applications.
The economical, easy to use GL720 features 10% in the X axis grade range and -0.5 to +25% Y-axis grade range with high accuracy up to 900 meters (3,000 feet) diameters. The GL720 is ideal for general construction and machine control grade applications
Topcon′s NEW RL-H4C auto-leveling laser combines precision, versatility and value in one job site tough package. Its super-fast self-leveling motors are accurate to +/-10 arch seconds meaning whether you′re checking grade or setting batter boards you′re going to be accurate the first time. Its high-power 2.4mW diode means you have a 2,600ft (800m) diameter working radius making it a great reference for machine mounted receivers. All of these features plus optional dry, rechargeable battery operation makes the RL-H4C more than twice the laser offered by anyone else.