Laser Distance Meter (DT100M)

Extech’s DT100M measures distance up to 330ft (100m).
It can calculate area and volume and the integrated 
Pythagorean Theorem allows the user to take indirect
measurements. 
Other features include continuous measurement
with Min/Max distance tracking, 20 point memory, 
addition/subtraction of sequential readings, 
front or rear edge reference, and a Stakeout function. 
Large quad backlit LCD display and double molded 
housing. 
It also has a handy built-in bubble level 
and comes with a wrist strap and batteries. 
For more details please refer datasheet.