COMPREHENSIVE KIT: The kit includes the rotary laser, laser reciever, tripod, grade rod, remote control, wall mount, 4 D-cell batteries, 2 AA batteries, alkaline battery adapter and hard carrying case. DURABLE: The rotary laser is IP68 rated for dust and water protection and is enjineered with a cage rubber overmold and innovative handle design. DUAL DIAL-IN SLOPE: This feature allows slope angle adjustment on both the X and Y axes. VISIBILITY: The rotary laser is equipped with variable-speed and scan-angle selection to allow for maximum visibility at different lighting conditions. BOSCH LEVELING REMOTE APP: A free to use Bosch app that can be used to control sleep mode, dual dial-in slope, and more. UCAL: Users are able to calibrate the laser uCal. This guides users step-by-step to confirm tool status or calibrate the rotary laser to ensure accuracy on the jobsite. CLASS II LASER: 630 - 650 nm; <1 mW