testo 557s heat pump set - Smart digital installation aid with 4-way valve block

Testo worldwide, german group (founded in 1957 based in lenzkirch) is one of the leading manufacturers for portable temperature, humidity and air flow measuring instruments and stationary measuring technology. testo innovative high-tech group consists of testo ag (with 4 subsidiaries) and testo holding gmbh (with 26 subsidiaries) the measurement solutions for the refrigeration, air conditioning and environmental technology, for industrial applications, flue gas analysis and the control of room air and food quality offer . testo group employs approximately 2,475 highly qualified and motivated employees who give their effort to promote innovative measurement solutions in the areas of climate, health, food quality, building technology and emission control in the world market. the testo product sortimet includes: electronic leak detectors, moisture temperature and flow gauge, monteurids, thermometers and much more. testo product range is characterized by high-precision measurement, robustness, extrahohe quality, noble design and innovative functioning, special reliability and unsurpassed lifetime values. the high-tech company generated sales of about 235 million euros in 2013 and has been awarded by the management consulting "munich strategy group" and the daily newspaper "the world" as one of the top 100 companies in german smes. the company invests around 10 percent of the annual consolidated sales in research, future-oriented product development and innovation, which causes sustainable and success-oriented consolidated development. product range of the testo brand corresponds to the us and european guidelines and has numerous quality certifications.