K-4580 American Style Glow-in-the-Dark Marching Lensatic Compass

Brand	N/A
Model	K-4580
Quantity	1
Color	Cinnamon
Material	Aluminum alloy
Ruler	Yes
Analog or Digital	Analog
Battery	No
Functions	Guide, positioning, orientation; Accurate and durable
Other Features	Fold size: 8.5 x 6.6 x 2.5cm; Unfold size: 17.0 x 7.0 x 2.5cm; The outer scale denotes mils and the inner scale (normally in red) denotes degrees; Measurement Accuracy: +/- 0~10 mils / +/-1 degree; The compass consists of a metal housing and a metal / plastic lid with a glass window with the sighting line caved into it; This spherically ground glass prism is mounted in a robust hinged housing that can be turned through 180 degree; This allows the prism to be moved into reading position and be folded back after use; The prism is attached to the compass housing by a vertical spring holder which allows approximately 3mm of vertical, movement using either thumb pressure of the knurled head screw (according to the model being used); This movement allows for sharp focusing which is achieved as followings: Move the prism holder either up or down to the point where the graduated scale is readable with maximum sharpness; While doing so keep the compass exactly horizontal; This way be checked by using the integrated spirit-level; When the prism is folded back the lid may be completely closed to protect it; A 0.3mm observation slit is provided above the prism; You can sight the objective by simultaneously observing the dial through the observation sighting line in the glass window; With some practice you will be able to read the direction of travel where dial and sighting line are intersecting; Dial, sighting line and object will simultaneously appear in your field of vision when you hold the compass exactly horizontal; The compass is provided with an integrated spirit-level; It can be screwed on a tripod by means of the threaded fitting in the base and serve as theodolite for simple terrain surveys; The compass dial, of compass rose has a sapphire bearing to ensure quick movement and optimal precision; Liquid damping prevents excessive oscillators of the magnetic needle which is the case in conventional compass; The liquid filled membrane capsule consists of highly transparent, flexible plastics which dilate and contract when being exposed to extreme changes of temperature and of air pressure; In this case temporary air bubbles may occur, however, will not affect the correct functions of the compass; There bubbles are only a temporary phenomenon and will disappear again 24~48 hours, as soon as the compass is used again under normal conditions; The fluid capsule can be easily replaced by removing the screws on the base of the compass housing; Ensure that the foam pad is inserted again below the capsule
Packing List	1 x Compass 2 x Oxford cloth bags 1 x Strap 1 x English user manual 1 x Chinese user manual

K-4580 American Style Glow-in-the-Dark Marching Lensatic Compass - Cinnamon