AlphaSense H2S-A1 Hydrogen Sulfide Sensor

The AlphaSense H2S-A1 Hydrogen Sulfide Sensor is designed to detect low levels of hydrogen sulfide in ambient air using well-known fuel cell technology. This 20mm diameter sensor is the industry standard size for portable gas detectors and also is compatible with the EC board. For Sensor Tube Caps, please look under the "Accessories" Tab With very high sensitivity and low zero, accurate and stable readings are possible when measuring current concentration ranges at the parts per million level. 0 to 100ppm H2S sensor Does not require calibration Up to 2 year lifespan Small, compact and maintenance free Specifications Measuring Gas: Hydrogen Sulfide Sensing Method: Fuel cell Sensivity (nA/ppm in 20ppm H2S): 550 to 875ppm Response time (t90 from zero to 20ppm H2S): < 35 sec. Zero Current (ppm equivalent in zero air) < ± 0.4ppm Resolution (RMS noise ppm equivalent): < 0.05ppm Range (H2S limit of performance warranty): 100ppm Linearity (ppm error at full scale): 0 to -4ppm Overgas limit (maximum ppm for stable response): 500ppm Warranty 90 Days. See GasLab Terms and Conditions Replacement Sensor Cross Reference Chart Model Part Number Sensor Type 4R H2S Semeatech 4H2S-100 052-0000-000 RAE 4H2S-100 032-0102-000 Solidsense 4H2S-100 CLE-0112-402 City 4H CiTiceL AC200-800 Sensoric H2S 3E 100S 0145-134-30049 Alphasense (0-500) H2S-A1 Membrapor n/a H2S/M-100 DDS (0-100) GS+4H2S Data Sheet (pdf) Tube cap adapters easily convert 20mm standard gas sensors from diffusion to sampling sensors. Molded polymer grips sensor for easy fit and removal while maintaining a good seal. TC-1 - 3 mm side mounted ports TC-2 - 3 mm top mounted ports TC-3 - 4.5 mm top mounted ports Micro-Pump Kit includes all the tools you need to utilize the tube-cap adapters as part of a sampling sensor system. Nafion tubing is a highly selective, semi-permeable membrane to water vapor. If gases inside Nafion tubing are wetter than gases surrounding the tubing, drying will occur. If the surrounding gases are wetter, humidification will occur. Micro gas sampling pumps provide a constant flow of air across the sensor with a tube cap - perfect for bench-top testing of sensors for closed-loop sampling applications. Sensor Pin Sockets - Manufacturers do not recommend soldering to the pins. Pin sockets can be purchased from Andon distributors. Click here to search for your sensor's socket. Select the brand PDF, find your sensor, then search for the Andon part number for your sensor's socket.