Image of DURAG D-FL 220T Ultrasonic flow velocity monitor

Durag D-FL 220T ultrasonic flow velocity monitor for tunnels

The D-FL 220T continuously measures flow velocity and flow direction in tunnels. Its ultrasonic sensors provide reliable measurement across the tunnel profile for tunnel ventilation control systems. Two identical sensors alternately transmit and receive ultrasonic pulses. The system evaluates the transition times dependent on direction and calculates flow speed. Key Benefits Extremely low maintenance Reliable […]

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Image of Teledyne API Model 430 Ozone Analyzer

TELEDYNE API Model 430 Portable FEM Ozone Analyzer (TAPI)

The Model 430 uses the proven UV Absorption principle, producing accurate and stable O3 measurements. The small footprint and quiet operation make it extremely useful for ambient air and indoor air quality, surveying, and industrial hygiene applications. Model 430 carries US EPA Federal Equivalent Method EQOA-1015-229 certification. The Model 430 Compact O3 Analyzer uses the

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Image of DURAG D-R 820F Extractive dust monitor

Durag D-R 820 Extractive Scattered Light Dust Monitor

The DURAG D-R 820 is an extractive dust monitor for wet sample gas to monitor low to medium dust concentrations. Key Benefits extractive measurement, continuous measurement, dilution of the sample suitable for systems with variable gas speed hyperkinetic sampling allows calibration to measure the dust concentration in mg/m3 single sided mounting to the chimney automatic

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Image of DURAG D-R 808 Dust monitor

Durag D-R 808 Dust Monitor

The DURAG D-R 808 is a suitability-tested scattered light dust monitor for monitoring small to medium dust concentrations in dry flue or process gases. With its certification range of 0 … 7.5 mg/m3 the D-R 808 is ideally suited for monitoring very low dust concentrations. Key Benefits Certified for official emission monitoring – QAL1 certified according to EN

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