H2S Monitor

An h2s monitor detects levels of hydrogen sulfide gas and alarms the user when it exceeds a preset safety level. The Occupational Safety and Health Administration sets workplace exposure limits in the form of TWA (Time Weighted Average) or STEL (Short Time Exposure Limit). Most portable H2S detectors use electrochemical sensor technology to measure parts-per-billion or parts-per-million levels of H2S gas. This chemical gas sensor reacts with the low-level hydrogen sulfide to generate an electrical current measured in nanoamperes (nA). The electronics in the gas monitor converts this measurable sensor current into a readable display of the H2S concentration.

Personal single-gas monitors with an H2S sensor are lightweight and easy to handle. Many are ATEX certified for use in hazardous environments and come with different measuring ranges to meet your specific needs.

H2S Monitor: Essential Tools for Hydrogen Sulfide Detection

These handheld and portable monitors typically feature a clip or ring to attach to the user’s clothing and keep it in the breathing zone. Some models include dataloggers that can store a month or more of continuous measurement. The user can retrieve this logged data using a docking station or infrared adapter.

H2S monitors are designed to operate maintenance-free with a life expectancy of 24 months or more. They should be stored in a room that is free of contaminant gas to prolong sensor life. Some models also have an optional hibernation mode to extend the sensor life for up to 36 months. Some h2s monitors require calibration with standard calibration equipment and reference gases.