About Analox Replacement 02 Sensor
Featured Reviews
See all 19 reviewsGenuine Analox Sensor
By Adam H.
- Southern CA, CA, US
My Analox O2 Eii sensor died and this appears to be a genuine Analox replacement. My analyzer now works again.
Perfect!
By MICHELE H.
- San Diego, CA, US
The sensor in my Analox O2 analyzer needed to be replaced. This is just want I needed!
If you are going to do some mixed gas diving, you need to have oxygen sensors that are going to work for the entire trip, not just the first few dives. Oxygen Sensor is for the O2EII Nitrox Analyzer (see SKU's: AQUNAK, AQUN02E2P). With an expectant life of 4 years, replacement sensor is easy to install in analyzer. Sensor is an internal temperature compensated electrochemical oxygen design. Sensor comes complete with O-ring seal. Sensor has a typical accuracy +/- 1% of reading +/- 0.2% of O2, an operating temperature of 23 Degree F to 122 Degree F (-5 Degree C to +50 Degree C), a sensor response of 15 seconds to 90% of final reading, a resolution of 0.1% O2 Replacement O2 Sensor makes a great save-a-dive-kit item.
Warranty Information
This product has a limited warranty of 36 months.
http://www.analoxsensortechnology.com/
714-891-4478
Analox Replacement 02 Sensor Features
- Replacement 02 Sensor:
- Designed for Use w/Analox O2EII Nitrox Analyzer
- For Analyzer See SKU's: AQUNAK, AQUN02E2P
- Measure Oxygen Levels in Range 0.1 to 100% O2
- Resolution: 0.1% O2
- Typical Accuracy+/- 1% of reading +/- 0.2% of O2
- Sensor Life Up to 4 years
- Operating Temperature 23 Degree F to 122 Degree F (-5 Degree C to +50 Degree C)
- Sensor Response: 15 Seconds to 90% of Final Reading
- Complete w/O-Ring
- Great Save-A-Dive Kit Item
Questions & Answers
Questions about this item:
kerry o
Will this o2 sensor work in the O2NE oxygen monitor?
Robert T
yes
Raymond H
How do I know when it needs to be replaced?
JAMES T
When you can no longer set the instrument to 20.9% in ambient air, then it is time to replace the sensor.
JEFFREY K
Unfortunately there is no way to tell until until it stops working. What gets even worse- you may not even want to buy a replacement cartridge because they have a limited shelf life. If having an analyzer working at all times is important to you, then I suggest you buy a second complete unit, test it then just keep it sealed until the first one craps out. You could just buy a replacement O2 sensor, but there is a good chance that another part in the sensor may break or the whole unit may be lost.
VINCE K
My Analox nitrox analyzer, gives some really odd reading. I would say we get 3-4 years. Not sure what the manufacturer says it gets, but that is what I get.
SAMUEL E
When the meter wold not zero before use.
YUVAL T
when you cant calibrate it / get strange results. they are supposed to be good for about 2 years.
ROBERT S
When it stops working you will need to replace the sensor. Usually when the battery stops working you will need to replace the sensor. Or if you go to analyze a tank and it doesn't show percentage and you know it has AIR in it then you will need to replace the sensor.
Michael R
If you have sealed the sensor after use each time, you should get between 1 to 2 years worth of use. If you can't adjust the analyzer to 21% when analyzing normal air, it's time to change the sensor.
Shopper
ARE THE REPLACEMENT ANALOX BUILT BY ANALOX OR SOME OTHER COMPANY?
KEVIN F
Analox has stated it does not manufacture electro-chemical oxygen sensors as this is not a process undertaken by their business (wet chemistry). They purchase these from a number of reputable suppliers.
“Be sure to only use Analox approved and marked replacement O2 sensors distributed by authorized Analox dealers. Use of other sensors may void your O2EII Pro warranty.”
Peter T
What's the expected shelf life for this product? I'm planning on getting the analyser and want to know if I should get a replacement now or when the existing sensor expires.
DAVID O
To answer Peter's question I would not purchase a replacement O2 sensor until you need one because my analyser didn't need a replacement sensor for 4 years. The sensor in the bag not being used still has a shelf life and may expire by time you need it.
JAY H W
Analox sells a cover for your analyser that keeps air from getting to the sensor. It will extend the life of it. I find the life of a sensor to be about four years so I would wait until I needed one.
JEFF M
mine lasted 2 years or about 200 fills
DIANE M
Wait until you actually need to replace the O2 sensor.
MIKE H
Depending on daily use, 1-1/2 years, with saver plug attached.
Humidity and storage has an effect as well.
But I have found no longer than 2 years.
JOSEPH A
Sensor life is supposed to be about 4 years, warranted for 3 years, once installed. Mine lasted around 5 years. I don't know how long one would last in an unopened shipping bag, though.
ARCHIE J
Dont recommend purchasing ahead of time since the life of O2 sensors is approx 2 yrs. I recieved mine in only a few days after placing my order.
DOMINICK M
Usual O2 sensor life is two years. Wait until you need the sensor as shelf life can be an issue.
PAUL L
Wait till it expires as while they are sealed, they are dated. Should last at least two years (providing it's cared for properly) but mine failed within the first year. Looking back I should have called the manufacturer regarding replacement.
DAVID P
it's something like 3 years. I would definitely NOT buy a replacement now as I understand they deteriorate based on time and not use.
JOSEPH P
if you replace the plug when not in use the sensor will last for years.
DEREK S
Definitely wait until the sensor in the unit needs replacing. Different manufacturers recommend different expiration times for their sensors (12-18 months), but even sitting in the packaging they are already losing life. Considering normal shipping times are 2-3 days, it is not a problem to order a new one.
GARY B
Given the sensor is basically an chemical-electrical reaction with a limited life span and will expire regardless of use, it's better to wait until the existing sensor begins to exhibit problems, such as unstable or fluctuating reading, before replacing it. The one you have sitting on the shelf may possibly be expired by that time as well. It's far better to replace them once they begin to go bad, than to rely on one that's been sitting on a shelf.
Peter T
Thanks Gary, just the answer I was looking for.
Shopper
My Analox 02 EII is showing 00,0 or 00,1 (if turning the knob) instead of 20,8. I was just wondering if I need to change the sensor or if there is something else wrong with it. Have you heard of this problem before?
JEFF M
change battery first if that dosent get it change sensor its the only 2 things it could be
ARCHIE J
Mine did the same, time to replace the sensor.
MIKE H
You should replace both the sensor and battery, that should solve your problem
VINCE K
That would be the place I would start. Replace the sensor. The sensors have a lifetime of about 2 yrs, weather used or not.
JOHN C
My guess would be if your battery is good and the Analox has not had any damage, or moisture/water, and if the sensor is over two years old, then replace the sensor.
Make sure when you store the Analox you have it in a sealed container like a pelican box. Moisture will dramatically reduce the life of these sensors.
STEPHEN P
Most likely the problem is an exhausted O2 sensor which is easy to replace by the owner. Less likely - the 9 volt battery is near dead.
Steve Padar
FRED G
The probability is 95% that the sensor has reached the end of its life, and must be replaced. There's a remote possibility that something else is wrong with the analyzer, but most likely it's the sensor. They are electro-chemical devices which eventually always lose their functionality simply through aging. I think the maximum useful life of an O2 sensor is around 3 years, depending opon the brand, but you'd have to check with the manufacturer to get the published operating life.
DOMINICK M
I had the same issue. Sensor was around two years old. I replaced the sensor and unit calibrated perfectly.
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