Rugged, lightweight and compact, the Topcon RL-100 1S Single Grade Laser sets the new standards for accuracy and precision. With a range up to 2,600 feet with a laser receiver, it is ideal for most construction leveling and grading applications. The RL-100 1S comes with an accuracy of ±10 arc second horizontally and has one of the highest repeatability, ±5 arc seconds. Also, this grade laser provides a single slope from -5% to +25% in x or y-axis.

The Topcon RL-100 1S is auto-leveling within ±5 degrees and has a rotation speed of 300, 600 or 900 rotations per minute. To prevent errors while leveling, it features an adjustable speed of 300, 600 or 900 rotations per minute. Also, it includes a high-contrast, LCD graphic display for easy reading. Plus, it has an operating temperature of -4°F to +122°F which allows the device to endure any weather condition.

With an IP66 rating, the Topcon RL-100 1S is dustproof and water resistant. It operates up to 85 hours with alkaline batteries and 80 hours with NiMH batteries. In addition, it includes a 5/8-11 tripod screw which is compatible with most tripod brands.