Kern E1 Electronic Theodolite 1984


Syarikat Kern mula mengeluar produk teodolit eletronik E1 pada 1984. Peralatan E1 apabila digabungkan dengan Kern DM503 akan membentuk sebuah total station yang mengukur sudut dan jarak secara elektronik. 


Gabungan Kern E1 dan DM503

Source: dehilster - link.

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