Testo Instruments is the world leader in combustion analyzers, HVAC R test & measurement equipment and much more. Testo engineered the worlds first digital combustion analyzer, the Testo 31 in 1979. Testo distributes more combustion analyzers than anyone else in the world today. The Testo 350 is one of the first portable combustion analyzers that was listed by the US EPA Environmental Technologies Verification program for use in industrial stack measurements.
Testo manufactures a complete line of HVAC performance testing devices, commercial and residential combustion analyzers, and RSA Refrigeration system analyzers, carbon monoxide CO detection, safety and IAQ indoor air quality meters. The Testo line as features anemometers, manometers, RH relative humidity, temperature, mositure hygrometers, wet bulb and even fiber video scopes.
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