The newest and most advanced Transit, incorporating suggestions and ideas from professionals that make this the ultimate tool for their use. The solid aluminum, waterproof Geo Transit contains a fast, magnetic north seeking, rare-earth magnet, balanced on a sapphire jewel bearing for quick measurements. The most noticeable feature is the hinge inclinometer, accurate to +/- 2°. This feature allows simultaneous trend and plunge measurements, reducing the number of measurements required in the field. An innovative needle design can be locked or unlocked. The 5010 model uses an azimuth dial. This means the dial around the edge of the compass goes from 0 to 360°. The Geo Transit comes pre-balanced for use in most of the northern hemisphere (see image of map and compass zones). However, if you are using the instrument in other countries, simply click on the image of the map, determine which country it will be used in and use the optional drop down menu above to select your compass zone. The compass will be pre-balanced for use in the selected magnetic zone by Brunton Inc in the USA, this process is free of charge but takes approximately 7 weeks, so please bear this in mind. Compasses use in the northern zone are in stock ready for despatch with very little waiting time.