T40 Rattler Single gas detector ATEX (CO, H2S or O2) - SafetyGas
MSA 10092521 Altair H2S Hydrogen Sulfide Single Gas Detector, Low Alarm 10 ppm, High Alarm 15 ppm, 2 Year Warranty - Durawear.com
BW Clip 2 Year Single Gas Detector Hydrogen sulfide (H2S)
S4000TH Intelligent Hydrogen Sulfide (H2S) Gas Sensor / Detector / Monitor | MSA Safety | United States
Crowcon Clip Single Gas Detector (H2S) - CL-H-10
Find Out Why You Need Hydrogen Sulfide Detectors
Gas Clip Technologies SGC Detector, Hydrogen Sulfide (H2S), 2 Year Run Time - John M. Ellsworth Co. Inc.
RAE Systems ToxiRAE Pro Single Gas Monitor with Hydrogen Sulfide (H2S) sensor (up to 100 ppm reading) - TG Technical Services
Fixed Hydrogen Sulfide (H2S) Gas Detector, 0 to 50/100/200 ppm | ATO.com
AirRadio 4-Explosive-Gas Detector H2S,O2,CO,EX Gas Sensor Sniffer BX-020 Combustible Gas Detector Tester for Propane/Methane/Natural Gas/Carbon Monoxide/Hydrogen Sulfide - - Amazon.com
Portable H2S Gas Detector High Sensitive Large LCD Display Back Light Rechargeable Li-Battery Powered Single Hydrogen Sulfur Gas Monitor: Amazon.com: Industrial & Scientific