The 6 Best Hydrogen Sulfide Detectors

This wiki has been updated 24 times since it was first published in November of 2018. Hydrogen sulfide is a dangerous gas that is poisonous, corrosive and extremely flammable. While it carries the distinctive foul odor of rotten eggs, a high-level of exposure can result in immediate harm or even death, so early detection at the lowest levels is essential. Our selection of monitors can offer the protection you need at home or on the job. When users buy our independently chosen editorial picks, we may earn commissions to help fund the Wiki.

1. UEi Test Instruments

This versatile unit from UEi Test Instruments (around $129) will sound an alarm for over a dozen combustible gases, making it useful in a variety of applications. The sensor is on the tip of an 18-inch gooseneck probe to help you locate leaks in hard-to-reach areas.

Runs on a single 9-volt battery
Headphones jack
Work light illuminates search area

2. MSA Altair

The MSA Altair (around $102) is a compact device that fits in the palm of your hand and clips easily to your belt or helmet. It automatically stores the last 25 events and has an infrared communication port, allowing you to save the data to the MSA link software.

Durable rubberized housing
Dust and water resistant
Simple one-button operation

3. BW Technologies Extreme

If you require constant monitoring, the BW Technologies Extreme (appx. $121) is designed to function continuously without needing recalibration or battery replacement. It features simultaneous audible, visual and vibration alarms for extra safety.

Logs and records up to 10 exposures
Built-in alligator clip
Needs to be replaced every 2 years

4. Ridgid Micro CD-100

The flexible probe on the Ridgid Micro CD-100 (appx. $160) allows you to pinpoint the exact location of dangerous gas leaks. This model offers the option to set a customized high and low detection range, plus you can select either a visual, audible, or vibrating alarm.

Ergonomic slim design
Replaceable sensor
Takes a few minutes to calibrate

5. Sensorcon Inspector

The Sensorcon Inspector (around $129) comes as a complete kit, including a hand pump assembly that attaches to the device, allowing you to draw air samples from out-of-reach spaces. The handy storage case has a soft foam interior and a safety lock.

Functions well in wet environments
Integrated clip and lanyard loop
Priced higher than similar models

6. Forensics Detectors Professional

The Forensics Detectors Professional (around $90) comes with a lithium-ion battery that recharges through a micro USB port. This unit is contoured for comfort with a rubber anti-slip exterior, but it's a bit larger and heavier than most handheld options.

Also displays time and temperature
Battery lasts up to 10 hours
Clip isn't very flexible

Last updated by Tina Morna Freitas

Tina Morna Freitas is a writer who lives in Chicago with her family and three cats. She has a B.A. in anthropology with a minor in English, and has built a freelance career over the years in writing and digital marketing. Her passions for cooking, decorating and home improvement contribute to her extensive knowledge of all things kitchen and home goods. In addition, her 20 years as a parent inform her expertise in the endless stream of toys and equipment that inevitably takes over the homes of most parents. She also enjoys gardening, making and sipping margaritas, and aspires to be a crazy cat lady once all the children are grown.

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