DET-2 Construction Theodolite

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  • 2" Anglular Accuracy
  • Vertical Axis Compensation
  • Dual LCD with Extra-Large Characters
  • Back-Lit LCD and Telescope Reticle
  • Simple Six-Button Keypad
  • Large Suite of Programmable Settings
  • Optical plummet allows quick setup over a control point

Product Overview

The Spectra Precision DET-2 Construction Theodolite is a rugged, cost-effective theodolite designed to give accurate angle measurements in general construction applications. The versatile, easy-to-use theodolite and accessories will increase your productivity when setting elevations and lines and turning angles.


  • 2" Angular Accuracy - accurate enough for any construction job, yet the display resolution can be tailored to operator's preferences for fast readings
  • Vertical Axis Compensation - tilt sensor provides the highest level of accuracy and can be turned on or off depending on job requirements
  • Dual LCD With Extra-Large Characters - easy-to-see angle readings eliminate errors and reduces eye fatigue
  • Back-Lit LCD and Telescope Reticle - allows work in low light conditions including indoors and extended hours near dawn and dusk
  • Simple Six-Button Keypad - quick setups and simple operation with low operator learning curve
  • Large Suite of Programmable Settings - provide multiple options for various users and job requirements
  • Optical plummet allows quick setup over a control point
  • Comes with: Hardshell, durable, o-ring sealed carrying case with plumb bob, rain hood, and adjustment tools


  • Establishing 90° reference lines
  • Checking angles, alignment, and plumb
  • Anchor bolt alignment
  • Gravity flow pipe laser setup
  • Steel column placement
  • Alignment of forms, tilt-up walls, and curtain walls
  • Basic grade work
  • Short range leveling



  • Image: Errect
  • Magnification: 30x
  • Aperture: 45mm (1.7 in)
  • Focus Distance: 1.35mm (4.43 ft) to ∞
  • Field of View: 1° 30'
  • Stadia Ratio/Constant: 100/0

Optical Plummet

  • Image: Errect
  • Magnification: 3x
  • Angle of View:
  • Focusing Range: 0.5m (1.6 ft) ~ ∞
  • Reticle Type: Crosshair

Angle Measuring System

  • Minimum Reading: 1" or 5"
  • Precision: 2"
  • Units: Deg / mil / gon / V%
  • Display: Dual, Large Character, Backlit LCD

Tilt Sensor

  • Automatic Compensation:
    • ±3' Range
    • User set On/Off


  • Tubular: 30"/2 mm
  • Circular: 8'/2 mm

One Touch Button Functions

  • ON/OFF: Power
  • ☼: Backlight/Illumination On/Off
  • HOLD: Angle Hold
  • R/L: Clockwise/Counterclockwise Measurement
  • 0SET: Zero Reset of Horizontal Angle
  • V%: Convert Vertical Degrees to Percent


  • Dust/Water: IP54
  • Operating Temperature: -20°C to 50°C (-4°F to 122°F)
  • Size - Instrument: 164 x 154 x 340mm (6.4 x 6.1 x 13.4 in)
  • Weight - Instrument: 4.5kg (9.9 lb)
  • Warranty: 1 Year


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