Octangonal Cross Staff

Description

The Cross-Staff was used at sea from the beginning of the 16th century until the first half of the 18th century. It was used to measure the sun's altitude, especially at the meridian passage. With the knowledge of the sun's declination, the mariner could then obtain his latitude. The staff is original, with the inscription. The cross pieces are replicas. Different cross pieces were used depending on the altitude. A different scale is on each side of the staff.

Description

Rain gauge is designed to measure the precipitation. This small Version consisting of upper and lower housing part, measuring cylinder; Housing made of stainless steel, orifice rim made of brass. Type 7019.0000 can be supplied with a receiving area of 100 cm2. (This type is not conforming to meteorological standards). • Receiving area : 100 cm². • Rain measure (graduated glass) : 250 cm³. • Measuring range : 0 t0 25 mm precipitation (relative to a receiving area of 100 cm²). • Graduation : 1/1 mm precipitation. • Dimensions : dia 115 mm; height 300 mm. • Weight : approx. 0.8 kg.

Description

We are supply and Export of Ranging Rod that made of steel conduct pipe of 25mm dia. Alternatively painted international orange & white.

Sizes Available

• Size 2 meter single • Size 3 meter single • Size 2 meter 2 fold • Size 3 meter 3 fold

Description

We offer a wide range of very high quality Plane Table Accessories that are suitable for maps preparation and recording topography in various engineering surveys. This outfit consists of a plane table board with a fitted tripod. These products undergo various quality tests at each level of its production to ensure good quality and flawless performances. These products are basically used in the construction industry for the purpose for surveying the land for commercial use.

Features :

• Export quality. • Reasonable price. • Customer centric organization. • Customizable.

Specifications:

• Size: 54 X 34 X 22 + 8 CM. • Material: Green Bamboo, Natural and Environmental.