Spectra Dual Grade Lasers, GL422, GL412 GL622, GL722

The Spectra GL series lasers include the GL422, GL412, GL622 and GL722. Spectra Precision Grade Lasers are rotary lasers with the added ability to grade or set slopes manually or automatically. Durable, extremely accurate, and easy to use, grade lasers are great tools for landscaping, drainage works, and general construction jobs.