Hydrogen Sulfide Detector model WT8822 Fast, dedicated detection of hydrogen sulfide gas for field and industrial monitoring. The WT8822 uses an independent H2S sensor and a high sensitivity alarm system to provide clear, on-site readings of hydrogen sulfide concentration. Key benefits Detect and monitor hydrogen sulfide concentrations quickly and reliably with a dedicated H2S sensor. Make informed decisions with retained readings and recorded extremes using HOLD, MAX, and MIN functions. Choose units that match your workflow with selectable ppm and mg/m3 display. Configure alarm thresholds and use the timed shutdown to match inspection schedules and conserve power. Calibrate on site to maintain consistent measurement performance. Main features Independent H2S gas sensor for focused hydrogen sulfide detection. High sensitivity detection and alarm capability for prompt notification of elevated H2S levels. HOLD function to retain readings for easy recording. MAX and MIN recall to review peak and lowest measurements during an inspection. Unit selection between ppm and mg/m3 for flexible reporting. Adjustable alarm settings to set concentration thresholds. Calibration function to adjust performance as needed. OnOff with timed shutdown to extend operating time. Supplied with user manual; battery not included. Package contents 1 hydrogen sulfide detector model WT8822 (battery not included) 1 user manual Typical applications Routine inspections and monitoring in wastewater treatment facilities and sewage systems. Field checks and maintenance for oil and gas operations, including pipelines and drilling sites. Confined space entry monitoring and pre-entry checks for maintenance teams. This detector is a straightforward, function-focused instrument for professionals who need dependable hydrogen sulfide measurement and configurable alarm and recording options.