IMPA 370331 Authentic Nautical Sextants For Ship Use
SW370331
Navigate the high seas with precision using our brass nautical sextant.
Delivery
EXW
minimum order
1 piece
Supply Ability
1200piece / Month
Country of Origin
Zhejiang,China
Stock Time
7Day
Quantity
US $329.00 - US $329.00
/ piece
Product Description
The Angle between the antenna - the celestial observation height and the horizontal Angle between two objects and the vertical Angle of the height of a single object, the nautical sextants is a precise Angle measuring instrument, which is composed of three parts: frame, optical system and Angle measuring reading device. The optical system includes telescope, moving mirror, fixed mirror and filter, etc. The Angle measuring and reading device is composed of indexing arc, indicator rod, drum wheel and vernier, etc. These components are mounted on the frame, and through the indicator rod to connect the optical system and Angle reading device into a whole. The sextant is based on thegeometric principles of"the outer Angle of a triangle is equal to the sum of two internal angles that are not adjacent","the internal alternate angles of parallel lines are equal","the central Angle can be measured by the arc distance it is against"and so on.
Instrument package:
1. Sextant 1. 2. Monoculars 1
3. Spare spring 4. Spare light bulb 1
5. Correction wrench 1. 6. Oil can 1
7. One screw driver 8. One brush9. One piece of testing cloth 10. One copy of instructions
11. 1 certificate
Basic parameter
(1) Measuring range: -5 ~ +130°
(2) Measurement accuracy: GLH130-40----40 arcseconds(3) Identification rate: 8.75 arcseconds
(4) Telescope: magnification: 3.5X Field of view: 5° Objective lens light diameter: 40㎜ Exit pupil diameter: 11㎜
(5) Lighting voltage: 3 volts
(6) Use temperature range: -30 ~ 50℃
(7) Instrument weight 1.2KG 1.8KG
Comprehensive score