EDT Electronic Diffusion Tube

Alphasense introduces the Electronic Diffusion Tube (EDT): a single gas data logger with ppb resolution using the proven Alphasense A4 family of electrochemical ppb gas sensors.
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With over 25 years’ experience in the design and manufacture of gas and particulate sensors, we have established a reputation as a reliable source for a wide range of gas sensor technologies.

At Alphasense, we supply high-quality Oxygen, CO2, toxic and flammable gas sensors to many of the world’s leading industrial OEMs.

If you manufacture portable or fixed industrial gas detection monitors, stack gas analysers or environmental monitoring instruments, we have the solution for your needs.

Alphasense now provides a solution to some old problems:

. Traditional Palmes-type diffusion tubes are commonly used for indicative measurement of nitrogen dioxide (NO2) in cities for Local Air Quality Management. However sampling over several weeks gives only one average concentration for the entire sampling period and the result is reported weeks after the measurement.

. Odours which were previously ignored by local industry and city councils are now headline problems. There is a growing requirement to monitor odour plumes around landfills, waste water treatment plants, agricultural/ poultry farms and industrial sites- but the cost of the necessary network of monitoring nodes is prohibitive. Hydrogen Sulfide (H2S) is the most commonly measured gas for odour detection.

Features include:

• Low cost EDT makes networks affordable

• User- adjustable logging interval from 15 seconds to 30 minutes

• Records relative humidity and ambient temperature

• Six months’ battery life from two non-rechargeable Lithium AA cells

• Designed to IP67 specification

• Mounting bracket connects easily to walls and poles

• Gases include NO2, NO2+O3, H2S, SO2 and CO. Sensor data sheets specify sensor performance

• Data analysis support through Alphasense cloud includes advanced correction algorithms

• Custom labelling on request

Would you like to know more?

Our team can help you with any product information, quotes, or any general questions you may have about the product.

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