Specifications Range up to 2,000 feet with laser receiver Accuracy ±1/16 inch at 100 feet Auto-leveling within ±8 degrees Grade setting: Dual ±10% Programmable dual slope Scan angles: 0°, 10°, 45°, 90° & 180° Tilt alarm Adjustable rotation speed IP66 dustproof and water resistant Product Description Featuring a programmable dual slope function that allows the user to perform slope at different inclinations in both x and y-axis, the Johnson Horizontal/Vertical Electronic Dual Grade Laser is ideal for outdoor applications such as site preparation, excavating, landscaping-terracing, controlling concrete pours and the link. It features an operating range of up to 2,000 feet with laser receiver and has an accuracy of ±1/16-inch at 100 feet. Auto-leveling within ±8 degrees, this dual grade laser offers a grade setting of ±10 percent. The Johnson 40-6582 includes a programmable dual slope function that can perform slope leveling at different inclinations in both x and y-axis. Featuring adjustable rotation speed, it also comes with four laser scan angles of 0, 10, 45, 90 and 180 degrees. Also, it has a tilt alarm function that ensures product accuracy by indicating if the laser has been moved. This Johnson horizontal/vertical dual grade laser features a backlit LCD display and operates with radio frequency remote control. With an IP66 rating, it is dustproof and water resistant. This electronic grade laser uses 40 hours with rechargeable Li-ion battery and up to 100 hours with alkaline battery. In addition, it includes a 5/8-11 tripod screw for easy tripod mounting. In the Box 40-6582 - Horizontal/Vertical Electronic Dual Grade Laser Li-ion rechargeable battery pack Alkaline battery compartment (batteries sold separately) Li-ion battery adapter Hard carrying case Remote control with 2 AA batteries Laser receiver with 9V battery and clamp Sighting scope Vertical bracket Fine adjustment plate User manual 3-year manufacturer's warranty