Leica Total Station Builder 405 – when a construction plan goes digital The Leica Builder 405 Total Station from Leica Geosystems is designed for anybody working on or around a site with the need of simple, intuitive, yet innovative, long-lasting and powerful measuring tools which are perfectly tailored for every construction job. From simple tasks to professional all-day use, the Builder Series offers a product family that will exactly meet your needs and will accelerate your work flow. The Leica Total Station 405 Builder Series – the high performer in its league! With all the same great features of the Builder 100-300 the Leica Total Station Builder 405 has the additional benefits of full-alphanumeric keyboard and prism measurement mode. if you are looking for a highly accurate total station that offers good value, then the Leica Builder 405 is the right instrument for you.