Testo, a German company founded in 1957, focuses on the research and development of precision measuring instruments. Its products include smoke analyzers, temperature recorders, infrared thermal imagers, and more. Its sensors are renowned for their high precision, long lifespan, and reliability, and are widely used in fields such as environmental protection, industry, and food

Product Type:

The Testo dissolved oxygen meter probe 0393 0002 belongs to an electrochemical dissolved oxygen sensor, which is used to measure the concentration of dissolved oxygen in liquids (such as water quality monitoring). Similar products (such as 0393 0100/0150) usually use electrochemical principles to generate current signals through the reaction between the membrane and electrolyte, which are converted into oxygen concentration values.

Technical features (inferred from similar products):

High precision: may support ppb level detection with an accuracy of ± 1% reading (refer to Orbisphere GA2X00 series).

Easy to maintain: Adopting a pre installed membrane box design, the replacement and maintenance time is short (such as completed within 5 minutes).

Durability: May have explosion-proof certification (such as ATEX), suitable for harsh environments such as petrochemicals.

Long lifespan: Sensors similar to the Testo flue gas analyzer can have a lifespan of up to 6 years, and it is speculated that the dissolved oxygen analyzer probe may also have a longer lifespan