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SteriPen Adventurer Opti Water Purifier

by SteriPen
4.5 out of 5 stars  See all reviews (31 customer reviews)

List Price: $99.95
Price: $89.95
You Save: $10.00 (10%)
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Color: Black
  • Compact handheld UV water purifier designed specifically for outdoor/expedition use; up to 8,000 16-ounce treatments
  • Destroys more than 99.9 percent of harmful microorganisms, including Giardia, bacteria, viruses, and protozoa
  • Safe and effective without altering taste, pH, or other properties of water; chemical-free
  • UV lamp can be used as an LED flashlight; weighs 3.6 ounces; measures 1.5 by 6.1 by 1 inches
  • Comes with two disposable CR123 batteries and a neoprene case with belt loop
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Frequently Bought Together

SteriPEN Adventurer Opti Handheld UV Water Purifier + Energizer Photo Battery 123, 6-Count
Price for both: $104.40

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Product Description

The smallest, lightest SteriPEN®, the AdventurerOpti Water Purifier uses a revolutionary optical eye to sense the water. The patent-pending technology provides safe use and the standard insulating sleeve around the UV lamp allows purification in even the coldest of waters. Fast, light, easy and effective, the AdventurerOpti provides the ultimate protection from waterborne illnesses. Giardia, cryptosporidium, bacteria and viruses are all destroyed in seconds-by SteriPEN® UV light. The UV lamp provides up to 8,000 one-liter treatments. UV purification works as the ultraviolet energy emitted by the light is absorbed by the cells of the microbe, preventing cell enzymes from 'reading' its DNA. Without intact DNA, microbes can't reproduce to make you sick. The process is simple but effective, destroying over 99.9 percent of harmful microorganisms. Great for camping, hiking and backpacking.Easy to use 1 button operation; LED light quickly indicates when ready to purify, then place the pen like lamp in clear water and stir until indicator light turns green..Dirty water should be pre filtered until clear prior to treatment..The UV lamp provides up to 8,000 one liter treatments..Device works with containers with minimum 1.75 in. diameter opening (ie Nalgene wide-mouth bottles)..Low power indicator lets you know when batteries need replacing..Automatic shut off when treatment is complete..Includes black neoprene case with belt loop and 2 non-rechargeable CR123 batteries and instructions..Size: 15.5cm. (6.1in.) x 3.3cm. (1.5in.) x 2.2cm. (1.0in.).Weight: 103g/3.6 oz. with batteries.

Product Details

  • Shipping Information: View shipping rates and policies
  • ASIN: B00CHRG8SM
  • Average Customer Review: 4.5 out of 5 stars  See all reviews (31 customer reviews)
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Customer Reviews

It is very lightweight and easy to use. Jonathan  |  9 reviewers made a similar statement
I am concerned that some have had defective units but ours worked very well. THoward  |  4 reviewers made a similar statement
I purchased the SteriPEN for a trip to Nepal and it worked great. Richard Slagle  |  6 reviewers made a similar statement
Most Helpful Customer Reviews
80 of 82 people found the following review helpful
5.0 out of 5 stars This is the Steri-Pen to get September 3, 2010
By Jarra
Color Name:Black|Amazon Verified Purchase
I had the old model Adventurer that frequently turned itself off in the middle of a purification cycle or wouldn't start at all. This model fixes all those problems, plus it works as a backup flashlight. It's been absolutely reliable on four trips now and I love it. Sure beats carrying a 1 lb. filter.
I recommend you get a water-clear bottle so it's easy to see when the UV light turns off; Nalgene makes one in the Tritan series. Tinted bottles make it hard to see whether the light is glowing or not, especially in the sun.
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134 of 142 people found the following review helpful
1.0 out of 5 stars steripen reliability July 13, 2011
Color Name:Black|Amazon Verified Purchase
Recently I completed the Kokoda track walk in Papua and New Guinea. Once on this walk there is no support so your gear has to be reliable and effective. In preparation I had acquired this model of steripen through Amazon. When it arrived I tested it and found the internal connections around the battery were not good, however, a small piece of aluminium foil seemed to complete the circuit consistently. [ideally I would have returned the item to Amazon for replacement but the logistics of sending it back from Australia and then waiting for the new one were not possible in the time before I left - this is no criticism of Amazon's despatch and delivery time which has always been excellent]. On day 3 of the 8 day walk the pen stopped working and would not resume no matter how much fiddling I did with some more aluminium foil. Fortunately I had taken purification pills just in case and they came in handy.

In the party was another person who had an identical steripen [coincidentally acquired from Amazon too] that also failed. So in all two of twenty pens failed.

Fortunately neither party became ill largely through disciplined personal hygiene, the use of our back up procedures and guides taking us to streams that they believed were clean.

I know many have used steripens without an issue but frankly this concerned me because when it was really needed this product did not prove electrically reliable. If you do buy one I STRONGLY recommend you test test test it when you receive it rather than finding out in the field that you bought a lemon.
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66 of 70 people found the following review helpful
5.0 out of 5 stars Nice update to the classic SteriPen Adventurer May 19, 2010
Color Name:Black|Amazon Verified Purchase
I had held off on getting one of these for awhile. Basically the concept seemed like magic to me. Wave the magic light in your water and kill all the germs. Well guess what? They work.

You will still need to filter to get any chunks out, SteriPen makes the FitsAll Filter just for this purpose. The FitsAll filter also acts like and adapter to fit the SteriPEN into a Kleen Kanteen. That makes for 1 liter of water purified in less than a minute.

This model comes with a nice neoprene case that will clip to your belt and a removable hard plastic cover that helps protect the end. It also has a flash light function, so you can filter at night.

They have also put in some circuitry to keep it from turning on unless you have it submerged in the water. So no more accidentally turning it on and running down the batter. I haven't had this model for too long, but I'm loving it so far.
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Most Recent Customer Reviews
5.0 out of 5 stars Used on 4 day bacpacking trip in Arizona
3 of us used the steri pen on a 4 day backpacking trip into the Rincons near Tucson. Due to the uncertainty of water we had to sterilize almost a gallon a day for each of us. Read more
Published 1 month ago by Ann M Ranalli
5.0 out of 5 stars It really works!
My wife and I climbed Mount Kilimanjaro for seven days and had to treat our water. None of the climbers had any problems with the treated water. Read more
Published 1 month ago by Joseph A. Lampignano
5.0 out of 5 stars Great Product
Used it in Nepal 2012 at the Everst Base Camp Trek.
Drunk only water purified by this device and never got sick. Read more
Published 1 month ago by Shahari
5.0 out of 5 stars It is excellent
Excellent product very useful for my permanent trekking, very confortable, easy to clenning, easy to put into water, and look very well.
Published 2 months ago by Jorge
5.0 out of 5 stars SteriPEN. What a wonderful invention.
I have this StriPEN and the pre-filter so that I can refill my water bottle from streams and lakes. It works very well and I am a "Happy Camper" now that I can use these... Read more
Published 2 months ago by hannahbeader
5.0 out of 5 stars SteriPEN Adventurer
Used this product in May of 2012 while we were traveling in China. I can't prove it was because of the PEN, but none of us got sick and I used it everywhere. Read more
Published 3 months ago by wttp
5.0 out of 5 stars Totally works
Used this on a backpacking trip and it really did work. I like it and would recommend anyone out in back country to get and use along with a katedyn
Published 4 months ago by troy groetken
5.0 out of 5 stars the finest in category
great product and very frequently used on my travels to remote areas, and by son on camping trips. seems does its job well although the battery life seems short (so do carry a... Read more
Published 5 months ago by vishal
5.0 out of 5 stars Awesome
Not sure really how to write this review but I can say that we did put this to the test. When we hike in the US, we usually carry our Katadyn Pocket filter which works great. Read more
Published 5 months ago by Daniel L Stickler II
5.0 out of 5 stars A week in the Adirondacks with nothing but river water to drink.
Our Boy Scout troop did a 50 miler this summer where the only water source was going to be the water we were traveling on. Read more
Published 5 months ago by David Bicknell
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