The history of HaslerRail A.G began in Switzerland in 1887. Due to the rapid development of rail transport at the beginning of the 19th century, there was a need to measure the speed of trains. In 1887, Gustav Adolf Hasler produced the first speedometer. In 1891, Hasler patented its innovative solution under the name TEL®.
The TEL® device indicated the speed of the vehicle and recorded the distance and time traveled. In 1920, Hasler began producing its devices under the name TELOC®, the name TELOC was created by combining the two words TEL and Loc for Locomotive. Another HaslerRail product is the RT / A tachograph. The RT / A tachograph is widely used all over the world and more than 40,000 units are used to date. In Poland, the RT tachograph has been used in 99% of locomotives and most of them are still in operation today, and RailTechPapla Sp. z o.o. as the sole representative of Hasler Rail AG in Poland, it supplies them with all original parts. There are also many cheap fakes on the market that do not meet the requirements of the Teloc RT / A speedometers design documentation.
An interesting fact is that the Polish standard for tapes for the RT speedometer does not comply with the requirements of the original HaslerRail documentation. HaslerRail has repeatedly stated that it is the sole owner of the rights to the documentation and has not outsourced the production to any external company, and the distribution of spare parts is carried out only through a network of agencies, the coverage of which can be checked at www.haslerrail.ch. It should be recalled that HaslerRail does not guarantee the accuracy of the distance and speed measurements, the correctness of readings, or the durability of the data stored in the speedometer, if non-genuine parts or consumables have been used to repair the device. Such data is of questionable legal value for investigations related to the assessment of the causes of railway disasters.