Rugged, High-Accuracy and one person use.

The rugged Spectra Precision Laser HD50 Handheld Distance Meter is designed to give specialty contractors a high-accuracy, one-person distance measuring and estimating tool to measure remote and difficult-to-reach places. A visible laser dot lets you safely measure hard-to-reach places or hazardous situations, such as large heights, factory interiors or over water, remotely or from a distance.

Features
One-person, 'non-contact' distance measuring up to 165 ft (50 m)
Accuracy of 1.5 mm even over large distances.
'Area', 'volume', and 'continuous measurement'
Visible red laser beam allows fast targeting.
Intuitive user keypad is simple and easy to use.
Built-in sighting system and waterproof to IP54
Operates over 1 yr on 4 'AAA' batteries

Applications
Measuring distance, area and volumes
Checking building square and area
Measuring for material estimation