Spectra theodolites, like the DET-2 model, offer features such as 2-second angular accuracy, a vertical axis tilt compensator, dual backlit LCD displays with large characters, a 30x magnification telescope, versatile battery options (rechargeable NiMH and AA alkaline), and programmable settings for enhanced usability on construction and surveying jobs. They also include a 90-degree angle beep for quick right-angle notifications, instant vertical angle to percent of grade conversion, and an IP54 dust and water resistance rating for use in challenging environments