The Topcon RL SV2S Dual Grade Laser will measure both horizontally and vertically, as well as measuring slopes. It will adjust for slopes from negative to positive 5°. With a rating of IP-66, it makes it ideal for outdoor use, being protected against both water and dust. It will work up to 120 hours on D cell battery power and measures up to 2,600 feet. The Topcon RL SV2S Dual Grade Laser can be used on a tripod. It can also be set on its side and still give accurate readings. The LS-80L is designed to work with the unit, which can allow for grade levels of 5mm, 10mm, and 15mm. It also works with the RC60 remote, which has a backlit display. The remote has a range of 328 ft.. The rotation speed is adjustable on the Topcon RL SV2S Dual Grade Laser. It also has a laser masking, so it will not interfere with other laser units. Audible warnings are built in for low batteries and leveling, as well as a digital display.Included: Battery(s) Indoor/Outdoor: Indoor,Outdoor Laser Color: Red Laser Level Mounting Method: Tripod Max Laser Distance (ft.): 1000 ft. Measurement Accuracy (in.): ±1/16 in. Number of Batteries Required: 4 Number of beams: 1 Number of Measurements: 1 Returnable: 90-Day Tools Product Type: Hand ToolDimensions Product Depth (in.): 7 in Product Height (in.): 8 in Product Length (in.): 8 in Product Width (in.): 7 in Details Battery Type Required: D Compatible Battery Type: Built-In Condition: New Features: Rotating,Self-Leveling,Waterproof Hand Tool Type: Laser Level ● Adjustable rotation speed ● IP-66 resistance to water and dust ● Mountable on tripod ● LS-80L sensor receiver ● AdirPro aluminum tripod included ● AdirPro 14 ft. aluminum grade rod Inches ● Range of 2,600 ft. ● Remote control up to 328' ● Accuracy of 1/16 ● Self-leveling ● LCD display ● Dual axis and dual grade ● Beam masking