Measuring chain surveying is the simplest form of detail surveying. In this method the lengths of lines marked on the field are measured, while the details are measured by offsets and ties from these lines.

 

Cross Staff is an instrument consisting of a staff carrying a brass circle divided into four equal parts or quadrants by two lines intersecting each other at the center. At the extremity of each line perpendicular sights are fixed, with holes below each slit for the better discovery of distant objects. 

 

The Open cross-staff consists of a long staff with a perpendicular vane which slides to and fro upon it. These open frame tripods are comes with lemon yellow powder coated and silver anodized.

Features:

Used to measure the altitude of the sun 

Used as a navigation instrument

Wind resistance and fine coating

A level staff also called levelling rod, is a graduated wooden or aluminium rod, used with a levelling instrument to determine the difference in height between points or heights of points above a vertical datum. It cannot be used without a leveling instrument. 

 

Specifications: 

 Fully Extended Length 3m 4m 5m

 

Section 3 4 5

 

Graduation

(F/B) 5mm/ 10cm

Weight 1.0kg 1.5kg 1.7kg

 

 

A tripod is a device used to support any one of a number of surveying instruments, such as theodolites, total stations, levels or transits. A tripod is portable, three-legged platform equipment, which is usually made of lightweight metal such as aluminum or wooden so that it can be moved conveniently within the lab.