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. 

 

GPS (Global Positioning System) is a highly accurate navigation system using signals from satellites to determine a location on the Earth’s surface, irrespective of weather conditions.

 

It is dependent on GPS satellites high above the Earth which transmit signals containing the time and location of the satellite. Any ground-based receiver which receives signals from four or more GPS satellites can use navigation equations to calculate its location on the Earth’s surface. Constant signaling can then update speed and direction information for moving receivers.

 

Prismatic compass is a portable magnetic compass which can be either used as a hand instrument or can be fitted on a tripod. It contains a prism which is used for accurate measurement of readings. The greatest advantage of this compass is both sighting and reading can be done simultaneously without changing the position. Prismatic Compass made of Gun / Non magnetic metal in a Leather case with Teak wood tripod Stand. Size of compass 100 mm. dia as per IS specification.

Major parts of a Prismatic Compass are:

• Magnetic needle

• Graduated ring

• Adjustable mirror

• Sliding arrangement for mirror

• Object vane

• Eye vane

• Metal box

• Glass cover