Spectra Precision GL422N Dual Grade Laser Grade Lasers 2x Zoom (Equivalent Focal Length:

2x Zoom (Equivalent Focal Length: 53mm)

Protective lens hood

Flexible power options provide 40 hours operating time with NiMH rechargeable batteries and 50 hours with alkaline batteries

Active temperature compensation gives accurate

you can perform any two-person leveling task with just one person

Spectra Precision GL422N Dual Grade Laser Grade Lasers 2x Zoom (Equivalent Focal Length:The automatic self leveling Spectra Precision GL412N single grade and GL422N dual grade lasers are the most rugged, cost effective lasers that do three jobslevel, grade, and vertical alignment. Even in harsh jobsite conditions, the GL412N GL422N deliver consistently reliable and accurate performance, enabling you to work faster and smarter. The rugged GL412N GL422N lasers can withstand drops of up to 1 meter (3 feet) onto concrete and tripod tipovers