Automatic Lasers

 

Construction laser

Cross line laser

Dot laser tools

Dual grade laser

Green beam laser

Interior laser

Laser detector

Interior multiline laser

Pipe installation laser

Plumb laser

Single grade laser

 

Automatic Levels

 

Digital electronic level

Automatic dumpy level

 

Leica Disto

 

Leica disto D210

Leica disto X310

Leica disto D3aBT

Leica disto D510

Leica disto D810

Disto accessory

 

Laser Calibration 

Laser level repair

 

Cable Locators

 

Leica digicat 550i

Leica digimouse

Leica digitex

Leica digitrace

Pipe locator

Signal clamp

 

Machine Control

 

2D control system

Machine control system

Leica digging system

Universal receiver
 

Rail Alignment

RS 4000 system

 

Total Station

 

Electronic theodolite

Leica total station

Topcon theodolite 

 
 
 
 
 
 
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Leica Automatic Optical Dumpy Laser:

Leica NA324 Dumpy Level + Tripod + Staff

Automatic Optical Level Leica NA332

Automatic Dumpy Level NA332 + Tripod & Staff

 

  

    

Automatic Digital Level Leica Sprinter 50
 

Leica NA728 Surveyors Dumpy Level 

 

   

Automatic Optical Dumpy Level Leica NA728
 
Topcon Automatic Optical Dumpy Level: 
 
Topcon Aluminium Tripod
Topcon Laser Tripod
 
Pentax Automatic Optical Dumpy Level: 
 
Dumpy Level Pentax AP224
Automatic Level Pentax AP 228
Pentax AP 230 Automataic Dumpy Level
  
Automatic Optical Dumpy Level: 
 
Construciton Laser Tripod
Imex Tripod
 
Spectra Precision Automatic Dumpy Level: 
 
Spectra Precision Automatic Dumpy Level AL28
 

Despite self levelling, fully automatic laser construction tools being around for decades, many builders and especially surveyors still prefer the good old, tried and tested dumpy level.  

 

Although dumpy levels are considerably less expensive, I do not believe cost is the major motivation for investing in a dumpy level, or automatic level as it is more properly called.  

 

The main reason is the belief in its quarter accuracy and control. The vertical cross hair shows that the staff is vertical, at least in one axis; while the metric staff reading in millimeters instead of the old E staffs with 10mm bars.  Few laser users employ Mabo Rods with a bullseye bubble for accurate measurement. 

 

There is also the concern that more than one laser is being used on the site or an adjacent site that cen be picked up in error. This cannot occur with a dumpy level.  

 

For surveyors taking many shots, the LEICA SPRINTER is proving very popular. It is essentially an electric dumpy level that is super accurate and provides digital distance measurement as well as elevation which can be downloaded from its memory. It may be regards as midway between a dumpy level and a builder's theodolite.  

 

A dumpy level can measure distance by calculation from the stadia lines but this is a tiresome business and not very accurate.  

 

Hence there are sound reasons why dumpy levels are still being sold in substantial numbers for use in building and construction.