The Leica Rugby 840 is a self-levelling construction laser for professional exterior and interior applications. Extremely rugged, shock-resistant and waterproof, it is designed to provide perfect measurement results with reliable precision even under the harshest conditions. The well-conceived, partially rubberised housing provides, next to shock-resistance, a safe grip in any position. All functions can be simply and directly controlled from the central interface at the front of the device. A mobile solar panel flexibly charges the built-in battery on the go.