The voltage tester testo 750 | Be sure. Testo

The three models in the testo 750 voltage tester family are
the first instruments with an all-round LED display. The
display can be seen from any position and guarantees an
ideal voltage indication thanks to its unique fibre optics.
All three models meet the latest voltage tester standard
EN 61243-3:2010 and have a safety specification according
to CAT IV. They have the most important functions for
voltage testing, continuity testing and rotating magnetic
field measurement.
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Testo SE & Co. KGaA is a world leader in the design, development and manufacture of portable test and measurement instrumentation. Backed by over 50 years of measuring engineering experience our mission is to provide the best quality, service and value in the industry. In addition, Testo is recognized as the leading worldwide manufacturer of portable combustion efficiency analyzers and air emission analyzers. Testo has also become a major supplier of HVAC, critical HVAC, refrigeration, airflow, and environmental monitoring instruments for markets as diverse as chemical, food service and production, pharmaceutical and biotech, and residential HVAC suppliers.

The company was founded in 1957 in Lenzkirch in the Black Forest region of Germany. The company has been privately owned since inception. Today, Testo consists of 32 subsidiaries and over 60 agents around the world. The United States subsidiary was founded in 1981.

The first product manufactured was a simple electronic thermometer. Today, this product line has expanded to include a large variety of temperature measuring instruments, such as data loggers, air velocity meters, humidity and dew point meters, refrigeration service analyzers, multi-function instruments, stack gas analyzers and air emission monitors, water analyzers, tachometers, sound, pressure and light meters, and thermal imagers.