the magnetic needle is the soul of the compass, and the core component of the geological compass is the magnetic needle. the magnetic needle in Harbin HGC-6 geological compass is made of a precision NdFeB disc magnet, which makes the compass accurate and avoiding demagnetised.

 

According to a geological survey expert, who previously used the famous brand Brunton compass. Now he find that Harbin compass's indicators and accuracy can be competitive to Brunton after using and comparing both of them. He communicated with the chief engineer of Harbin, got to know Harbin compas and Brunton compass both use  NdFeB magnet as needle.

 

in addition, Harbin geological compass has been specially designed with a magnetic needle lock function, which extends the life of the product. both the compass magnetic needle and clinometer error ess than 0.5 degrees, a damping time of less than 15 seconds and a fast needle stop. Such specification will surely not lose in competation with other brands.

 

Harbin made hundreds of technical improvements and innovations over the past 50 years on the magnetic needle. the small magnetic needle contains Hrbin spirit to improve, and is a great credit to the reputation of Harbin Brand for decades.

Stop time of needle	≤15s
Dial sacle	0-360 °
Acuracy	≤ 0.5°
Precision of long air level	15±3/2mm
Precision of circle air level	30±8/2mm
Size:	857035(mm)
Weight:	0.24kg
Material	Aluminium
Body Surface	Profile oxidation