Topcon AT-B4A Heavy Duty 24X Automatic Optical Automatic Level Kit Automotive Accessories The IP65-rated weather seal keeps

The IP65-rated weather seal keeps your tools safe from moisture

Durable handle

all-metal ball-bearing slides

lightweight base

set up and use

Topcon AT-B4A Heavy Duty 24X Automatic Optical Automatic Level Kit Automotive Accessories The IP65-rated weather seal keeps24 X Magnification Topcon offers a wide range of automatic levels for the land surveyor, civil engineer, and contractor. All AT B series levels feature a magnetically damped wire hung having superior resistance to cold, heat and shock. All AT B series have a standard 360 horizontal circle. All models are waterproof with nitrogen gas sealed telescope which prevents clouding and moisture on the lens. Waterproof nitrogen gas filled Magnetically damped