Spectra Precision DET-2K Theodolite Kit 2-Second Accuracy – Digital Transit and Tripod

The Spectra Precision DET-2 is a rugged, field-proven digital electronic theodolite built for general construction, layout, and alignment work where accuracy, speed, and reliability matter. Designed to simplify angle measurement without the cost or complexity of a total station, the DET-2 delivers dependable performance for contractors who need precise results day in and day out.

Built around an intuitive operating system and durable mechanical design, the DET-2 is easy to learn, fast to deploy, and accurate enough for demanding layout tasks such as 90-degree lines, anchor bolts, column alignment, and elevation checks. Its versatility makes it a go-to solution for concrete, utility, steel, and general contractors who want precision without overkill.

Dual Displays, Simple Controls, Built for the Jobsite

The DET-2 features large, dual-sided LCD displays with bold characters that are easy to read from either side of the instrument. Both displays are backlit, and the telescope reticle includes illumination for low-light conditions, making it usable indoors, at dawn or dusk, and during winter workdays with limited daylight.

A six-button keypad provides quick access to the most common functions without digging through menus. One-touch buttons allow you to zero angles, hold readings, convert vertical degrees to percent of grade, and switch between clockwise or counter-clockwise angle measurement. The result is less walking around the instrument and faster production in the field.

Accuracy You Can Trust, From Short Shots to Long Sight Lines

With a 2-arc-second accuracy rating, automatic vertical compensation, and a 30x magnification telescope, the DET-2 delivers sharp, stable readings across both short and long distances. The short minimum focus distance allows clear viewing up close, while high-quality optics maintain clarity over longer sight lines.

An optical plummet enables fast, accurate centering over control points, speeding up setup and reducing rework. Vertical angle readings can be displayed in degrees, gons, mils, or percent grade, allowing the instrument to adapt to different job requirements or crew preferences.

Designed for Real-World Construction Conditions

The DET-2 is rated IP54, protecting it against dust and splashing water commonly encountered on active jobsites. It’s built to handle rough handling, frequent transport, and daily use without losing reliability.

Power flexibility is another advantage. The instrument includes both a rechargeable NiMH battery pack and an alkaline backup battery pack that accepts standard AA batteries. This ensures you’re never sidelined if charging isn’t available on site. Battery status is clearly displayed on the LCD, and an automatic shut-off function helps extend runtime.

SitePRO Contractor Grade Aluminum Tripod INCLUDED in this Spectra DET-2 KIT

SitePro ALQR20 Aluminum Heavy Duty Quick Release Tripod

Built for the demands of the jobsite, the SitePro ALQR20 delivers rugged stability and fast setup in one dependable package. Constructed heavy-gauge square aluminum, this tripod features double-banded legs for enhanced strength and reduced flex — ideal for high-precision applications in tough conditions.

The quick-release clamps make setup and adjustments fast and secure, while powder-coated black hardware resists wear, corrosion, and jobsite grime. The replaceable steel shoe points anchor confidently into dirt, gravel, or concrete for solid footing.

With a flat head style and standard 5/8-11 thread, the ALQR20 is compatible with most construction lasers and optical instruments. It extends up to 64 inches for versatility in uneven terrain, and collapses down to 40 inches for easy transport and storage.

Key Features:

• Heavy-duty square aluminum construction with reinforced double-band leg design

• Quick-release clamps for fast, reliable height adjustments

• Durable black powder-coated metal hardware resists jobsite wear

• Replaceable steel shoe points for solid traction in any surface

• Flat head with 5/8-11 threaded mounting bellhousing

• Extended height: 64 inches (163 cm)

• Collapsed height: 40 inches (102 cm)

Ideal for: contractors, surveyors, and construction pros who demand durability, fast setup, and long-term reliability in the field.

SHORT RANGE LEVELING
The Telescope can be set to 0.00% for short range leveling, PLUS it is Compensated

ALIGNMENT
The DET-2 can be used to align forms, footers and anchor bolts

TURNING 90’s or ANY Angle

• • The DET-2 can be used to turn 90’s and check angles

• • A Theodolite is required for laying out of radii, circles or curves

CHECKING PLUMB / Tilt Up Walls

• • A theodolite can be set up on a parallel offset to the line for checking plumb
  • A steel scale can be used to check a consistent offset
  • Tilt-up walls can be done using a theodolite that’s set up on the line of the wall and by checking bottom and top positions.

GRAVITY FLOW PIPE / UTILITY WORK

• The Spectra DET-2 can be used for Dialgrade / Pipe Laser setups, including manhole and pipe elevations, layout and line setting.

BASIC AND STEEP GRADE WORK

• • Can be used for short range grade work at very steep angles
  • Only along the line of site
  • Can be used for a run of grade stakes

WATERPROOF COMPACT CARRYING CASE

• • The DET-2 Model number is clearly displayed on the outside of the case for inventory management

• • Molded, closed-cell foam inserts

• • O-ring water seal

• • Easy to carry, with recharger, backup alkaline battery back, multi-language comprehensive operating manual, tools and plumb bob in custom pockets.
    

DUAL DISPLAYS and CONTROLS

• • Less walking around the instrument, faster operation when turning 90’s
  • Telescope tangents and locks have a positive fell.
  • Quick release tribrach included

LARGE LCD CHARACTERS, BACKLIT DISPLAY AND TELESCOPE

• • Largest, easiest to read characters on the market
  • Both displays are backlit
  • Telescope is also illuminated
    • The DET-2 is use-able inside buildings, at dawn and dusk
    • Greatly extended work hours, especially in the winter

USER INTERFACE AND SELECTABLE OPTIONS

• • Simple to use and intuitive
  • One-touch keys for 0-Set, V%, HOLD, and Horizontal Right/Left
  • Large battery status display
  • User configurable Parameter Settings to individual preferences or job
    • Unit of Angle (degrees, gon or 6400)
    • 0 or 90 degree Zenith angle
    • Automatic shutoff / 30 minutes or Off
    • 1-inch or 5-inch display resolution
    • Tilt On-Off / Vertical compensation
    • 90 degree Beep or No-Beep

• • Image – Erect
  • Magnification – 30x
  • Aperture – 1.7-inch (45 mm)
  • Focus Distance – 4.43 ft to ∞ (1.35 m to ∞)
  • Field of View – 1˚ 30′
  • Stadia Ratio / Constant – 100 / 0

• • Image – Erect
  • Magnification 3x
  • Angle of View 5˚
  • Focusing Range – 1.6 FT ~ ∞ (0.5 m to ~ ∞)

• • Minimum Reading : 1-inch or 5-inch
  • Precision : 2-inch
  • Units – Deg / Mil / Gon / V%
  • Display – Dual, Large Character, Backlit LCD

• • Automatic Compensation : ±3- Range
  • User Set ON/Off

• • Tubular : 30-inch / 2mm
  • Circular : 8-foot / 2mm

• • 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 (Ingress Protection Rating) : IP54 (protected against dust and splashing water)
  • Operating Temperature -4˚F to 100˚F (-20˚C TO +50˚C
  • Size – Instrument 6.4-inch x 6.1-inch x 13.4-inch (164 x 154 x 340 mm)
  • Weight – Instrument : 9.9 lbs (4.5 kg)
  • Warranty : 1-Year
  • Accuracy : 2-inch
  • Power supply — Rechargeable NiMH battery pack or 4 AA batteries

• • One year manufacturer’s limited warranty

• • Establishing 90 degree 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
  • General Contractors
  • Concrete Contractors
  • Residential Contractors
  • Tilt up Contractors
  • Sports or Playing Field Contractors
  • Underground/Utilities Contractors
  • Steel Erectors
  • Foundations
  • Parking lot Contractors
  • Utility Lighting Contractors