The Jerome J605 low-level portable hydrogen sulfide monitor from Arizona Instrument is designed to detect at concentrations as low as 3 ppb with a resolution of 20 ppt. It has a survey mode that allows the user to continuously draw in samples of air in order to sweep an area for hydrogen sulfide hotspots or leaks and enable corrective action to be taken. Its wide detection range makes it useful for multiple applications, including regulatory compliance and odor control at wastewater and landfill facilities, scrubber efficiency testing and monitoring corrosion in control rooms. 800/528-4711; www.azic.com.