Danielle’s Review – Co-PRO

CO-PRO carbon monoxie detector

CO-PRO carbon monoxie detector

Today I am doing a new review of a dive product just released recently called Co-PRO I found that was debuted at DEMA. It tout’s itself as the personal carbon monoxide protection. For diver’s this is important because you rely on the air your breathe from your tanks that, for most diver’s is usually filled at a dive shop. The US standard has long been a 10 ppm max while some countries are requiring maxes of 3 or 5, in part because the effect multiplies when you breathe it at depth, in part because of the binding properties, and . Readings over 5ppm are becoming more common.

Let’s start with what is carbon monoxide. This colorless, odorless and tasteless gas is slightly lighter than air. It is extremely toxic to humans and animals if inhaled in large quantities. Think about all those movie suicides where the actor or actress starts the car and put a hose from the exhaust in through the window with the garage door shut. You get the picture.

Carbon monoxide is one carbon atom and one oxygen atom. It is connected by a triple bond of two covalent bonds as well as one dative bond. Carbon monoxide is produced from the partial oxidation of carbon-containing compounds; it forms when there is not enough oxygen to produce carbon dioxide (CO2), such as when operating a stove or an internal combustion engine in an enclosed space. In the presence of oxygen, carbon monoxide burns with a blue flame, producing carbon dioxide.

ok, enough of the science lesson.
We shot this video below. It is the first time we have tried this product. Thanks to Rich who demonstrated how to use the product and his thoughts.

Rich’s review:

Pro’s –
1. Great for travel abroad. I would have loved to have this on my trip to Nica.
2. $7.95 for piece of mind. When we pay $700+ for BCD to protect us, $7.95 is inexpensive.
3. Condom like package was easy to open.
4. Directions were easy to follow.
5. Convenient small travel pack for traveling. Like this when there is so many larger items we have to pack for dives. I am going to keep one in my dive bag.
6. Not much room for error. If the tables turns brown or black, you have bad air.
7. 2 year shelf life.
8. Fast result time in under 10 minutes.

1. If you need to test multiple tanks, it could take a while waiting 10 minutes for each. However, I think that most divers have tanks filled at one spot so I am not sure how relevant this would be. I have 4 tanks, all were filled from one dive shop. I tested one as it is all the same air.

Danielle’s review
easy to use, convenient for travel and inexpensive to know you have good air. I checked out some other ways to test for carbon monoxide. Analox has a system for around $300. I would rather use the money I save using CO-PRO for cool new gear. I like the fact that there is an expiration date on the packs.
Cons: can’t really think of one.

The directions are simple.
Follow these easy steps.

1. Remove Sensor Button from its package.
2. Insert Sensor Button into the balloon.
3. Stretch the mouth of the balloon over the scuba valve.
4. Inflate the balloon slowly until the Sensor Button is visible. (approximately 7 inches in diameter)
5. Remove balloon and tie it off. (can be used multiple times or until CO is detected)
6. Wait 5 to 10 minutes for a color change. (See chart below for color change)

Co- Pro sensorchart

Co- Pro sensorchart
photo courtesy of Co- Pro

Here is the video from Co-Pro

They have also answered some questions you may have:
How many times can I use the CO-Pro?
It can be used multiple times or until carbon monoxide is detected.
Once the package is opened, the CO-Pro should not be exposed to atmospheric conditions longer than eight hours.
Poor atmospheric conditions (carbon monoxide, moisture, etc..) can greatly decrease the sensor’s ability to detect.

At what ppm does the CO-Pro start to indicate?
The CO-Pro can indicate carbon monoxide as low as 5ppm.

How long does it take for the CO-Pro to indicate carbon monoxide?
It all depends on the concentration level. The higher the concentration, the faster it will indicate.

What is the shelf life of the CO-Pro?
Each package has an expiration date stamped on it. Approximately 2 years.

Notice the condom looking package and protection references. It gets your attention!So ask yourself…Do you have protection?


About daniellesdives

diving enthusiast
This entry was posted in Technical tips, info, or other useful thoughts and tagged , , , , , , . Bookmark the permalink.

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