David White Digital Transit Theodolite DT8-05

Simple, push button functions gives the user precise LCD digital readouts.   Incremental encoding detection system with dual digital displaysAutomatic power shut-off 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 Specifications 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)