SulfiLogger A/S
About
SulfiLogger A/S is a Danish sensor technology company headquartered in Denmark that develops and manufactures the SulfiLogger series of hydrogen sulfide (H2S) sensors for continuous real-time monitoring in demanding industrial environments. The company's patent-pending microelectrochemical sensor technology measures H2S directly in liquid, air, and inline process gas streams without requiring sample conditioning, drying, or filtration. The sensor platform achieves plus or minus 5 percent accuracy with a detection limit of 1 percent of full range and response times under 25 seconds. Three model variants address distinct industry applications: the S1/X1-1020 for wastewater with a passive anti-fouling flush front for direct submersion in raw sewage, the S1/X1-1120 for biogas and biomethane with threaded G1-inch ISO 228-1 mounting for inline installation after anaerobic digesters, and the X1-1220 for oil and gas with surface-treated 316L stainless steel for enhanced corrosion resistance. All models feature 4-20 mA analog and RS-232 digital output with cloud data connectivity, and carry ATEX, UKEx, and IECEx certification for Zone 0 hazardous areas plus ETL listing for US and Canada Class I Division 1. SulfiLogger sensors enable real-time H2S mapping in sewer networks for hotspot identification and chemical dosing optimization, continuous desulfurization monitoring in biogas plants, and upstream H2S tracking in oil and gas separation processes. Supporting accessories include the PowerCom Box for autonomous remote deployment, inline flow cells, and an in-pipe adapter for direct installation in pipes above 2 inches diameter.
Key Products
H2S sensor designed for direct submersion in untreated wastewater, featuring passive anti-fouling flush front, measurement range 0-5 mg/L (0-1000 ppm), 3 barg pressure rating, and 0-40°C operating range for sewer network hotspot mapping and chemical dosing control.
Inline H2S sensor for biogas and biomethane process monitoring with threaded G1-inch (ISO 228-1) mounting, measuring 0-5 mg/L in wet gas directly after digesters or desulphurization units, eliminating need for gas drying or conditioning.
Corrosion-resistant H2S sensor with surface-treated 316L stainless steel for oil, natural gas, and produced water applications, rated to 60°C with custom pressure ratings available for installation after oil and gas separators.
Battery-powered communication enclosure that enables autonomous SulfiLogger deployment in remote or power-limited locations with cloud data connectivity.
Inline flow cell adapter for mounting SulfiLogger sensors in 1/8-inch piping for biogas and process gas H2S monitoring applications.
Inline flow cell adapter for mounting SulfiLogger sensors in 1-1/4 inch piping for higher-flow biogas and process gas monitoring applications.
Mounting adapter for installing SulfiLogger sensors directly in pipes larger than 2 inches for continuous in-pipe H2S measurement without bypass sampling.
Remote data visualization and monitoring platform receiving real-time H2S measurements from SulfiLogger sensors via RS-232 digital output for trend analysis, alarming, and regulatory reporting.
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