Marine/nautical brass clinometer

Marine/nautical  brass  clinometer

Specifications

nautical clinometer, with double plating, finish will never tarnish or discolor.

Description: 
1) This Nautical Clinometer has a low friction weighted movement (no fluid or bubble) that indicates the angle of heel to degree accuracy over a +/- 50 degree range. All parts of movement are made of brass, and the axis is fixed within a rolling bearing, that provides the clinometers accuracy. 
2) Case is made of brass, the opening port is made of high quality alloy. Both of them are polished by hand carefully and with double plating - zirconium plating based on chromium plating. This finish can stand up to tough outdoor conditions and will never tarnish or discolor. 
3) The dial is light silver gray with black numerals.  
4) Size: case diameter7" (180mm), dial diameter 5"(125mm), depth 3-3/4"(95mm). 
5) 5 Pcs high quality stainless steel mounting screws with PVD finish included. 
------------------------------------------------------------

Special of GL180 Series:
The particularity of case and plating. Case is made of brass, the opening port is made of high quality alloy. Both of them are polished by hand carefully and with double plating: PVD-Zirconium plating based on Chromium plating. PVD zirconium Plating: (PVD = Physical Vapor Deposition). Firstly, a Chrome plating is plated on the polished brass or alloy surface, then a Zirconium Coating is plated over the Chrome plating by the PVD technology. Zirconium is a metal which has high hardness, high melting point and high Corrosion-resistance, this new plating bring the best corrosion-resistance to the product, and makes it never tarnish or discolor. The surface of Zirconium Coating has the color of polished brass and nobler shine like silk.