David White Digital Transit Theodolite DT8-05LS

The DT8-05LS has a laser beam built into aperture for easy and accurate alignment.  Simple, push button functions gives the user precise LCD digital readouts.   Incremental encoding detection system with dual digital displays Automatic power shut-off Optical plummet for centering of point Coaxial tangent and clamp screws provide ease of use in sighting and alignment Built-in battery pack can be attached and detached by a single action Water resistant, sealed construction Includes: instrument, sunshade, tool kit, rain cover, plumb bob, carrying case, rechargeable battery pack/charger, alkaline battery tray, user manual Telescope   Objective aperture: 1.77 in (45 mm) Magnification: 30X Image: Erect Field of view: 1° 30′ Resolution: 3” Minimum focus: 53 in (1.3 m) Stadia constant: 100 Electronic Angle Measurement Angle measurement: Absolute Encoding Minimum reading: 1” / 5” Direction method: H. Both sides, V. Single side Accuracy: 5” Unit of angle: Deg / mil / gon / V% Display: LCD both sides Tilt Sensor Automatic Compensation: Yes Range of Compensation: +/-3’ Level Vial Sensitivity Plate vial: 30” per 2 mm Circular vial: 8’ per 2 mm Other Operating voltage, typical: 4.8 VDCBatteries: 4 x 1.5V (AA)/Rechargeable Ni-MHOperating Temperature range: -4 °F  to +122 °F (-20 °C to +50 °C)Waterproof class: IP 54Weight: 10.2 lb (4.6 kg)Dimensions: 6.5 x 6.1 x 13.4 in  (164 x 154 x 340 mm)