Perfect for creating slopes and layout applications, the Topcon RL-SV2S Dual Grade Laser is ideal for grade checking while excavating, pipe laying, landscaping, foundations, retaining walls, drop ceilings, and more. Self-leveling within ±5 degrees, this dual grade laser offers an accuracy of ±10 arc seconds in both axes. It comes with an operating range of up to 2,600 feet with a laser receiver and features a dual grade of ±5 percent. The Topcon RL-SV2S comes with an adjustable rotation speed of 300 or 600 rotations per minute. For a cost-effective and time-saving leveling, it has a height-of-instrument alert feature that notifies the construction professional that the device has been moved. Also, it has an operating temperature of 4°F to 122°F that can withstand any weather changes or climate conditions. With an IP66 rating, this Topcon dual grade laser is dustproof and water-resistant. Using dry-cell batteries, this self-leveling laser operates up to 120 hours while it runs up to 65 hours with the BT-74Q rechargeable battery. In addition, it includes a 5/8-11 tripod thread which is widely compatible with most tripod brands