Digital tachograph is a device that is placed in a vehicle where it takes notes about the activities of the vehicle. For example if you drive a truck for an hour, then you stop for about three hours and then you drive again it will all be recorded on digital tachograph. This device is primarily used so that the cops could see how long the driver has been driving or how fast he’s been driving. There are new kind of digital tachographs produced by well known company Siemens. These digital tachographs are usually placed in trucks, buses, taxis, boats, etc. If a driver wants to change the information that is recorded he will be revealed because it will be encrypted in the vehicle unit. Most of digital tachographs are automatically installed in the vehicle when it is produced. If they are not you can get it installed at your mechanic. Digital tachographs are considered to be one of the best new inventions in monitoring employees. In the past most people couldn’t even imagine this kind of device. Many people today don’t even know that it exists. One of the best ones today is Siemens digital tachograph. It’s very easy to learn how it works. Best way to learn how to use a Siemens digital tachograph is by checking out the user manual. In most countries in the world it is necessary for every truck driver to have a tachograph and if they don’t have it they will be punished by the authorities. Every detail you want to know about Siemens digital tachograph you can find on their web page. DOWNLOAD SIEMENS DIGITAL TACHOGRAPH USER MANUAL HERE