Specifications Used to Align Pulleys, Sheaves, Drivetrain Detects Misalignment (Offsets, Angles, Twists) Used to Check Height & Flatness of Mounting Plates Constructed w/ Rare Earth Magnets Accuracy of ±1/16 inches at 10 feet Working Range of 50 Feet IP54 Water & Dust Resistance Product Description The Johnson Level Magnetic Sheave Alignment Laser is a reliable device used by contractors to accurately align pulleys, sheaves, drivetrain, and conveyor surfaces using a tightly controlled beam of light. It effectively detects misalignment, especially offsets, angles, and twists, and helps in reducing power losses, bearing wear, and noise on gears. This laser can also be used to check the height and flatness of motor and gear box mounting plates, making it a versatile tool for the professional. Durable & High-Quality Construction: This Johnson Level Laser emits a bright beam for accurate alignments, comes in a compact size that can easily fit on small diameter sheaves, and is designed to have an easy setup for a more efficient use. It is constructed with rare earth magnets that allows a secure attachment to ferrous metals, has an accuracy of ±1/16 inches at 10 feet, and a working range of up to 50 feet. This laser has an IP54 Protection Class, providing dust and water resistance for the laser device, and has an included Pulley Offset Chart that provides an accurate misalignment angle for the user. Together with the Alignment Laser device, the package also includes three (3) precision-machined magnetic targets, two (2) "AA" Alkaline Batteries, and a hard-shell carrying case. It is covered by a 1-year warranty, providing durability and reliability for long term use. In the Box 40-6201 Johnson Level Magnetic Sheave Alignment Device w/ Red Beam (3) Precision-Machined Magnetic Targets (2) "AA" Alkaline Batteries Hard-shell carrying case 40-6211 Johnson Level Magnetic Sheave Alignment Device w/ Green Beam (3) Precision-Machined Magnetic Targets (2) "AA" Alkaline Batteries Hard-shell carrying case