The Topcon DT-207 7" Waterproof and Dustproof Digital Theodolites has a telescope that can magnify the image up to 30x and will focus at a minimum distance of 3'. It makes it easier to measure in tight areas. The bubble level will help ensure the unit is in the proper position. It also has an optical plummet, which also helps with leveling while measuring angles.
With a rating of IP-66, the Topcon DT-207 7" Waterproof and Dustproof Digital Theodolites allows you to use the machine in different weather conditions. With it being powered with AA batteries, it will work up to 150 hours.
Since the Topcon DT-207 7" Waterproof and Dustproof Digital Theodolites uses an absolute encoder, you do not have to wait to take measurements. The tribrach is detachable, which also makes it easier to take more accurate measurements after setting up the proper position.