Type a compass to choose if you rely on the highest possible accuracy can be obtained with a hand held magnetic compass.
Typical users of this compass are: engineers, surveyors, geologists, forestry, architects, military power, marine navigation personnel and others who put the first extreme accuracy.
The advantage with precision compass observations are:
• Very easy to read thanks to open to the light-scale clear.
• Rugged construction withstand tough conditions.
• Some models are available with the back - the scale bearings.
• Available with battery, or beta-lighting
How to use SightMaster
1. Hold the compass close to one of your eyes horizontally in front of you.
2. At the same time when you read a compass bearing through the lens / prism you see on the top of the instrument to the object.
3. Through an optical illusion indexline will appear to " stand" of the compass housing so that very accurate easy to read the bearing of an object
With SightMaster can also create a quick read directly from the lubber bearing on the line above the compass capsule great accuracy is not important where.
A series SILVA SightMaster hand - held survey precision compass, which represents the highest quality in precision, sensitivity and durability. They have friction free sapphire jewel bearings with short setting time for fast and accurate readings. They are available in two different versions appearing display different systems:
prismatic
The SightMaster prismatic, combining traditional features with SightMaster extraordinary clear and open to light prismatic vision system. Thanks to the development is very easy to obtain accurate even in dark conditions.
Prismatic SightMaster equipped with an open light, parallax free prismatic magnification ( 10x) observation system, on the aluminum housing.
Capsule: Anti-static liquid filled for optimal ease of the compass card.
Compass card: SightMaster Aluminum Lensatic is equipped with appropriate scale and compass with prismatic SightMaster equipped with a transparent compass card with precision scale and both models are equipped with a scale up to a direct reading on the capsule in line lubber. Sapphire jewel bearing for friction free movement of the card enables quick and accurate readings.
Accuracy: Max + - 0.5 ° from true course with precision magnetic appearance. Max + -1.0 ° from true magnetic course with direct lummox read the line above the capsule.
Dimension and weight:
LA - model, 75 x 53 x 16 mm. Weight: 110 gm
LMG - the model, 80 x 60 x 21 mm. Weight 60 gm
PA - model, 75 x 53 x 16 mm. Weight 120 gm