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on November 19, 2010
calibrates itself every 22 hours with a push of a button. alarm sounds at two different settings;low and high. monitor doesnt actually readout h2s levels, only alerts when it registers certain amounts. excellent monitor to use if you only need to know when h2s is present. not the monitor for you if you want to know an exact reading....such as 30ppm,37ppm,41pp, and so on......
44 comments15 of 17 people found this helpful. Was this review helpful to you?YesNoReport abuse
on June 11, 2014
This may be a rather unconventional use of an H2S detector, but I have IBS and suffer frequent, foul-smelling gas. I began to suspect that the problem was unusually high H2S levels in my flatulence. I found a used GasAlertClip with 8 months of battery life remaining on ebay for a mere $35, so I snapped it up quickly.

It arrived today, and I put on some pajama pants, sat so the sensor was positioned at my anus, and farted. It went off almost immediately and continued at high alarm until I pulled it away, after which it stopped going off within a few seconds. I repeated this several times and it went off, at high alarm, every time, always shutting off within a few seconds after being removed. The peak concentration recorded was 83 ppm, well above normal levels for flatulence. My suspicions were right!

So I've ordered Devrom (bismuth subgallate) to treat the odor; bismuth binds sulfur and has been shown to markedly reduce H2S levels in flatulence. I will use this detector to see quantitatively how well this treatment works. I'm a nerd and can't just go by smell - I need to see the numbers.

H2S detectors: now a Health and Personal Care item for the Gassy Gus among us!
11 comment13 of 15 people found this helpful. Was this review helpful to you?YesNoReport abuse
on June 29, 2012
Product received as stated. We have used these for several years and have never had a failure.Will continue to use this brand.
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on June 15, 2013
Will not work with bw calibrator is not recognized, will only do self check, need to order different model if required to calibrate you unit
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on March 9, 2015
The portable carbon dioxide is a great life savings device for firemen and auditors how are always in hazardous areas like around fire and boilers, this little device give me the satisfaction make me feel safe to be able to work comfortable very good product
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on July 30, 2015
We operate in the ND oil patch and are required to have H2S monitors. We've been using these for 3 years and haven't had any problems. We don't encounter a lot of H2S gas either. They are good for 24 months from activation.
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on December 2, 2014
If it ever fails to detect the H2S gas that it's supposed to detect, I won't be around to edit my review to 1 star. So until then, I give it 5 stars for protecting me.
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on June 13, 2014
I checked around and found these. They were exactly what I was looking for. I order them and they arrived on time. We are happy with our purchase.
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on March 20, 2014
This is a good product. They are simple to use, very durable, Have used the BW detector in the past. Have not put the new ones in service yet.
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on July 16, 2015
It is what the description stated. It comes with a certificate of calibration. This model is what everone on my job site was wearing.
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