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Teaching a NOOB how to read grade Run a laser u0026 change elevations on a jobsite PT 1 2 4k video Spectra gl412n laser level excavator package withlr60w & magnetic mount the easy-to-use lr60 features versatile 360-degree laser reception and works with all types of rotating lasers on all types of machinery for fast, no-hassle setup. Rugged and waterproof, the LR60 receiver withstands all weather environments.