Marine magnetic compass/boat compass

Marine compass, marine magnetic compass,marine boat compass : 
1.simple to construction. 
2.easy to operate 
3.substantial in economy. 
4.CCS BV certificate etc.

Marine magnetic compass :

Marine CPT-130 Magnetic liquid compass:

 This marine magnetic compass is a good kind of liquid compass. It is designed to meet the technical requirements of GB/T10104-1995 and ISO-449 standards referring class A magnetic compass. 
It is simple to construction, easy to operate and substantial in economy.

Main Technical Data:

Card diameter: Φ130mm 
Direction error: not more than 1.5° 
Friction error: not more than 0.26(H=34uT at 20±3°C) 
Semi-period: more than 5.7 seconds(H=34uT at 20±3°C) 
Eddy error: not more than 1.2 degree after rotating one cycle in an even speed of 1.5°/sec(H=34uT at 20±3°C) 
Chief semi-cycle deviation: 1~40° 
Quadrant self-deviation:1~6° 
Tilting self-deviation: -40uT~40uT 
Operation temperature:-20°~60°C 
Illumination Power: DC 24V 0.06A 
Spare Parts & Accessory: 
Correcting magnetic bars: 12pcs 
Correcting pure iron sheets for quadrant self-deviation: 10pcs 
Magnetic glass: 1set 
Plastic oil kettle: full of liquid for removing the gas foam 
Screw cap bulbs: 2pcs(24v 0.06A) 
Rubber washer: 1pc

Size: