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Topcon DE16 Diagonal Eyepiece 731109 for AT-B2
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TopconDE16SKU Spectra Precision DET-2New
Accessories

Topcon DE16 Diagonal Eyepiece 731109 for AT-B2

$350.00
Need 5+? Request volume pricing →
In Stock·Ships same day before 2 PM CT
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2-second Accuracy

Hold grade with a 2-second accuracy rating.

Authorized Topcon Dealer

Genuine, factory-fresh Topcon equipment with legitimate firmware and calibration documentation.

Same-Day Shipping

In-stock orders placed before 2 PM CT ship the same day.

Buy With Confidence

Compatibility and setup details on every product, plus our AI assistant for quick questions.

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Stock, compatibility, and ordering questions answered instantly
Authorized dealerGenuine, factory-fresh Topcon equipment
Same-day shippingOrders before 2 PM CT ship today
30-day returnsUnused equipment in original packaging

Authorized Dealer

Genuine equipment sourced straight from manufacturer partners.

Ships Same Day

Orders placed before 2 PM CT leave the dock today.

Genuine Gear

Factory-fresh, authentic units with legitimate firmware.

Best-Price Guarantee

Authorized-dealer pricing on every unit — request a quote anytime.

Kit Builder

Not sure what goes with this accessory?

Answer a few job questions and our Kit Builder assembles the full setup — receiver, rod, tripod, and case matched to your workflow.

Build your kit

Quick Answer

What is the Topcon DE16?

The Topcon DE16 Diagonal Eyepiece 731109 for AT-B2 is a Topcon professional jobsite instrument with 2-second accuracy. It's available from Express Tools as an authorized Topcon dealer with same-day shipping on in-stock orders.

FIELD APPLICATIONS

What contractors use this accessories for

01

Construction Layout

Precise positioning for structural and civil work

02

As-Built Documentation

Field-verified position records for project closeout

03

Grade Verification

Confirm elevations against design before pouring or paving

PRODUCT OVERVIEW

Product Description

The Spectra Precision DET-2 is a professional-grade digital theodolite engineered for general construction applications where accuracy and ease of use are paramount. This affordable, versatile digital transit combines proven theodolite technology with user-friendly features that make it ideal for contractors of all experience levels.

Key Features:

With 2-second accuracy, the DET-2 delivers precise angle measurements essential for layout work, site surveys, and construction staking. The digital display makes readings quick and eliminates the interpretation errors sometimes associated with optical theodolites, streamlining your measurement process and reducing mistakes.

Professional Applications:

Construction contractors use the DET-2 for building layout, foundation staking, lot surveys, and grade verification. Its versatile design adapts to residential, commercial, and civil construction projects where reliable angle measurement is critical to project success.

Why Contractors Choose This Model:

The DET-2 strikes the perfect balance between affordability and professional performance. You get digital precision without the premium price tag, making it an excellent choice for contractors who need reliable measurements without breaking the budget. The straightforward operation means minimal training required, getting your crew productive immediately.

Express Tools Professional Grade:

When you need a theodolite that performs like a professional instrument but doesn't require a specialist to operate, the Spectra Precision DET-2 delivers exceptional value. Perfect for contractors building their surveying toolkit or upgrading existing equipment.

Why This Equipment

Authorized Dealer

Genuine, factory-fresh inventory with legitimate firmware and calibration documentation.

Same-Day Shipping

In-stock orders placed before 2PM ship same day from our Texas warehouse.

Expert Support

Call or chat with a contractor equipment specialist before and after your purchase.

Free Shipping

Free ground shipping on orders $99+ to the continental US.

Why Buy This?

Professional-grade equipment, authorized dealer pricing.

The tools contractors trust on municipal infrastructure, commercial projects, and high-tolerance earthwork aren't available at hardware stores — and they shouldn't be. This equipment is engineered for professionals, and buying it through an authorized dealer means you get full manufacturer support when it matters.

Express Tools carries only factory-fresh inventory from brands contractors specify by name. No gray-market product, no import-spec units, just authentic gear with legitimate firmware and calibration documentation.

Same-day shipping on in-stock items, expert support before and after the sale, and a 30-day return window on most products. If you have questions about specs, compatibility, or applications, call us — we know this equipment.

TECHNICAL SPECS

Specifications

Technical Specs

Manufacturer data and field-verified measurements.

SKUSpectra Precision DET-2
TypeDigital theodolite/transit
Accuracy2-second
DisplayDigital
Key Feature 12-second angle measurement accuracy
Key Feature 2Digital display reading
Key Feature 3User-friendly interface
Key Feature 4Error elimination through digital readout
Key Feature 5Affordable professional-grade construction
Use CasesBuilding layout; Foundation staking; Lot surveys; Grading work; Construction site surveys; General construction applications
Setup StepsMount DET-2 on tripod at measurement location | Level the instrument using bubble levels | Sight target and adjust focusing | Read digital angle display | Record measurements
Pro TipsUse high-quality tripod for optimal stability | Replace batteries before extended field sessions | Take shade breaks to verify display readings in sunlight | Perform calibration checks before critical layout work
Compatible EquipmentProfessional surveying tripods; Prism assemblies; Reflective targets; Survey measuring tapes
Common IssuesTripod instability affecting measurements | Battery depletion during field work | Display visibility in bright sunlight
Gradelog — AI field platform for contractors

Built for Topcon equipment owners

Run the jobsite around your equipment

Gradelog is the AI field platform for contractors — grade shots, photo documentation, calibration tracking, and as-built reports, all tied to your gear.

  • Equipment & calibration tracking
  • Photo + grade documentation
  • AI field assistant, 8 languages
Try Gradelog FreeFree to start · iPhone & Android · 8 languages

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Topcon DE16 Diagonal Eyepiece 731109 for AT-B2

$350.00

Gradelog — Earthwork Operating System

Free 30 days with every Express Tools purchase

Your equipment. Your data. All in one place.

Gradelog is the field-execution platform built for grading and earthwork crews. Log grade shots, track cut/fill, document phases with photos, and generate as-built reports — from the cab to the office.

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Gradelog dashboard — live field overview with grade shots, photos, and equipment status

Built by the same team as Express Tools

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30 days

Free trial

8 languages

Supported

iPhone + Android

Works on