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SteriPEN Adventurer Opti UV Water Purifier

4.6 4.6 out of 5 stars 209 ratings
$99.95
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Purchase options and add-ons

Brand SteriPen
Product Dimensions 9"L x 8.25"W x 2.25"H
Package Information Bag
Power Source Battery Powered
Model Name Opti
Material
neoprene
Capacity
1 Liters
Purification Method
Ultraviolet
Item Weight
0.11 Kilograms

About this item

  • Compact handheld ultraviolet light (UV) water purifier designed specifically for outdoor/expedition use. -Reusable for up to 8,000 liters.
  • Destroys over 99.9% of harmful bacteria, viruses and protozoa, like Giardia and Cryptosporidium. -Certified by the Water Quality Association.
  • Fast, safe, effective and chemical-free. Doesn't alter taste, pH, or other water properties.
  • Weighs only 3.8 ounces with batteries. Measures 6.1 x 1.3 x .9 inch. Water sensor doubles as an LED flashlight.
  • Includes 2 CR123 batteries, neoprene case with belt loop, and 3-year limited warranty.
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Product Description

Product Description

An easy-to-tote watering can is a must for young aspiring gardeners! Kids love the fun bright colors and playful design of these compact garden tool kits. Encourage your child to take a walk around the backyard, or expand your horizons with a walk around the neighborhood and find inspiration for what you can plant in your own garden! Helps kids to develop responsibility and encourages awareness of sustainability of caregiving practices. Hape's toys stimulate children through every stage of development and help nurture and develop their natural abilities. All Hape products sold in North America meet or exceed all applicable safety standards.

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SteriPEN Adventurer Opti Handheld UV Water Purifier

The SteriPEN Adventurer Opti Handheld UV Water Purifier harnesses the power of ultraviolet light to make water safe to drink. This same technology is used by leading bottled water manufacturers as well as major cities in the US, Europe, and Asia to purify water.

The SteriPEN Adventurer Opti utilizes an optical eye to sense the water and project UV light to destroy 99.9% of bacteria, protozoa and viruses quickly and effectively. UV light does not alter the taste, pH, or other properties of the water, and works without the introduction of chemicals to the water. The handheld system is easy to use does not require pumping or time consuming filtration. The patent-pending technology ensures safe use and provides purification in even the coldest of waters.

The optical sensor also doubles a great backup light when camping or taking a night-time walk to refill your water bottle. The Flashlight mode is activated by pressing and holding the single button down for three seconds. The clear lamp cover focuses the LED light.

Safe and Effective Water Sterilization

Extensive testing has proven SteriPEN to be safe and effective, eliminating over 99.9% of bacteria, viruses and protozoa that cause water-borne illness. SteriPEN has earned the Water Quality Association’s Gold Seal, certifying its effectiveness.

A Lightweight, Easy to Use Purification System

The AdventurerOpti can be used with any wide-mouthed water bottled with a minimum opening of 1.75 inches. The system is battery operated and can be used with disposable or rechargeable batteries (rechargeable batteries sold separately). All together, the system weighs a scant 3.6 ounces with the batteries making it a great choice for backpacking and expedition use. The SteriPEN Adventurer comes with a neoprene carry case with a belt loop for easy packing.

Specifications:
  • Weight: 103 grams/3.6 ounces with batteries
  • Size: 15.5 by 3.3 by 2.2 centimeters / 6.1 by 1.5 by 1 inches centimeters
  • Battery: Uses two CR123 batteries (included)
  • Disposable Battery life: 100 treatments (16 ounces/0.5 liters)
  • Rechargeable Battery life: 40 tp 50 treatments (16 ounces/0.5 liters)
  • UV Lamp Life: 8,000 treatments
What's in the Box?
  • SteriPEN Adventurer Opti
  • Two disposable CR123 batteries
  • Neoprene carry case with belt loop

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SteriPEN Adventurer Opti UV Water Purifier

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There are no defects. I have the original batteries that came with it.

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Customer reviews

4.6 out of 5 stars
4.6 out of 5
209 global ratings

Customers say

Customers like the ease of use, size, quality and portability of the water purification unit. For example, they mention it's easy to use, compact and lightweight, taking up less room. Some appreciate the water quality. That said, opinions are mixed on battery life and value.

AI-generated from the text of customer reviews

42 customers mention34 positive8 negative

Customers like the quality of the water purification unit. They mention it works well, functions as expected, and has no issues. Some say it's very useful and has a long battery life.

"...Pros: Lightweight, durable, effective, no bad taste!Cons: It will be a little pricey to replace the batteries." Read more

"...The unit operates fine from the looks of it i get the green light every time...." Read more

"...It was easy to use and worked well for us...." Read more

"...I found the SteriPEN worked well for us. I kept it in my bag and traveled all over the metro area and in the countryside...." Read more

28 customers mention23 positive5 negative

Customers find the water purification unit easy to use. They mention it's simple and quick to use, with no hassles with pumps and tubes. They also say the button is easy to press and the directions are clear.

"...The button is easy to press and you can press it once for 1 liter, or tap it twice for .5 liter...." Read more

"...Also, no hassles with pumps and tubes like my friend's filters...." Read more

"...It was easy to use and worked well for us...." Read more

"...The thing is super simple to use and it works very quickly. While some in my party were waiting for their water to purify, I was drinking mine...." Read more

21 customers mention21 positive0 negative

Customers find the water purification unit portable and easy to carry. They say it's great for lightweight backpacking, and excellent for traveling. Some mention it'll take up less room than a Katadyn. Overall, most recommend it for travel and hiking.

"...I would recommend this product!Pros: Lightweight, durable, effective, no bad taste!..." Read more

"...The weight was nominal and, while you certainly want to use the included case, it's sturdy enough...." Read more

"...systems, this is the hands-down the best choice when it comes to being light and compact. You can't go wrong with this unit...." Read more

"...I like the small size and light weight. However there are some things that can be done to make it better.1...." Read more

15 customers mention15 positive0 negative

Customers like the compact size and light weight of the water purification unit. They say it takes up less room and is more versatile.

"...is the hands-down the best choice when it comes to being light and compact. You can't go wrong with this unit...." Read more

"This is the most compact & speedy type of purification tool on the market that I've seen...." Read more

"...I like the small size and light weight. However there are some things that can be done to make it better.1...." Read more

"...although it was not the least expensive SteriPen, because of it's compact size and light weight...." Read more

13 customers mention13 positive0 negative

Customers are satisfied with the water purification of the product. They mention that it is very effective in sterilizing the water using modern technology. They also say that it's the fastest water purifying option and the best option for safe water when outdoors. They appreciate that it treats one liter of water in 90 seconds and that it delivers drinkable water.

"...This product sterilizes your water using modern technology, and doesn't affect the taste of the water one bit...." Read more

"...My SteriPEN Adventurer held up to these elements and delivered on drinkable water...." Read more

"This is the most compact & speedy type of purification tool on the market that I've seen...." Read more

"...The thing is super simple to use and it works very quickly. While some in my party were waiting for their water to purify, I was drinking mine...." Read more

8 customers mention8 positive0 negative

Customers are satisfied with the sturdiness of the water purification unit. They mention that it's well-made, perfect for the outdoors, and a rugged outdoor small padded case would be a big plus for this unit. Some say that the "ON" switch is sturdy enough to where bumping into it wouldn't damage it. Overall, most are happy with the quality and durability of this product.

"...This SteriPEN is durable and the batteries are secured nicely using a wide screw on the bottom that also helps keep the cap secured so water doesn't..." Read more

"...I will say, though, the "ON" switch is sturdy enough to where bumping into it wouldn't turn it on...." Read more

"...and, while you certainly want to use the included case, it's sturdy enough. I had it in the outer pocket of my pack much of the trip...." Read more

"...It's been absolutely reliable on four trips now and I love it. Sure beats carrying a 1 lb. filter...." Read more

14 customers mention7 positive7 negative

Customers are mixed about the battery life of the water purification unit. Some mention that the batteries last a long time, while others say that they're inconvenient, non-standard, and difficult to replace.

"...The battery life is very good. I probably used the pen at least 5 to 10 times per day for the entire three weeks I was out on the trail...." Read more

"...However, the batteries (CR123) are a pain. They're expensive and you have to carry a spare set in case they run out...." Read more

"...We sterilized 4 liters a day for about 5 days and the batteries did fine. We plan to use this for backpacking in the future." Read more

"...So no small water bottles." Read more

10 customers mention5 positive5 negative

Customers are mixed about the value of the water purification unit. Some mention it's reasonably priced and functional, while others say it'll be expensive to replace the batteries.

"...The price is perfect for peace of mind, and it really is easy to lug." Read more

"...Cons: It will be a little pricey to replace the batteries." Read more

"This is a good buy, lightweight, sterilizes water, BUT only works about 30-40 times per 2 batteries and uses CR123 battery size which you will never..." Read more

"...the batteries are not easy to find in many locations and are not cheap...." Read more

Best option for safe water when outdoors
5 Stars
Best option for safe water when outdoors
Keep the water safe to drink, just insert the SteriPen into the water container
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Top reviews from the United States

Jeo
5.0 out of 5 stars Never Know When You Might Need One!
Reviewed in the United States on May 17, 2011
Verified Purchase
I bought this SteriPEN specifically for backpacking and camping. I first thought about purchasing one when I was taking my Wilderness First Responder course, and my instructor demonstrated how one worked. I've spent a lot of time drinking iodine over the years while hiking, and I'm quite relieved those days are over. This product sterilizes your water using modern technology, and doesn't affect the taste of the water one bit. The button is easy to press and you can press it once for 1 liter, or tap it twice for .5 liter. This SteriPEN is durable and the batteries are secured nicely using a wide screw on the bottom that also helps keep the cap secured so water doesn't get inside. Well manufactured, great concept, perfect for the outdoors. Besides, you never know when you might need one! This would also be great during any kind of disaster, so having one handy is comforting. I would recommend this product!

Pros: Lightweight, durable, effective, no bad taste!

Cons: It will be a little pricey to replace the batteries.
14 people found this helpful
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Pawel Nowicki
5.0 out of 5 stars Price - convenience - performance, works for me
Reviewed in the United States on July 16, 2012
Verified Purchase
I have used this product once until now, I have done about 3 gallons of water. The unit operates fine from the looks of it i get the green light every time. For the short time I got to use it, it still runs on the same battery, the sensor that some people said have problems with, for me works ok. The water quality, I am no expert but drank water from a lake and am still fine after 2 weeks. When I get to use it in other sources I will give another review. I like this option better then filters b/c from the description it kills more pathogens. Understanding the concept of UV light and knowing that in my child hood they use to use these lights to sterilize hospitals i trust it more then a simple style filter. I picked this particular type b/c of its price/convenience/performance, I think it fulfilled all these for me. I don't mind spending few dollars more for batteries or the extra negligible weight for extra protection. I also think that if my steriPen batteries will tip the scale on global warming, then we are in more trouble already the we think. I use rechargeable at home.
2 people found this helpful
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Fixer
5.0 out of 5 stars Must Have
Reviewed in the United States on June 27, 2011
Verified Purchase
I recently took mine up to the Boundary Waters where abuse to all gear is the staple since portaging, hiking, and exposure to water via rain or tipped over canoe are commonplace. My SteriPEN Adventurer held up to these elements and delivered on drinkable water. I'm not sure why people have had issues turning theirs on since it was pretty easy to do such. I will say, though, the "ON" switch is sturdy enough to where bumping into it wouldn't turn it on.

I used it in two Nalgene water bottles (one tinted charcoal grey and the other chartreuse yellow) and had no issues not seeing the UV light turn on - even at high noon. It'd take a minute or less to clean the water, dry the SteriPEN, and put it back into my bag where it takes hardly any space. Also, no hassles with pumps and tubes like my friend's filters.

My only gripe, which isn't much b/c its not that big of a deal, but I wish it would buzz or vibrate when it was done. I usually would scoop up the water at the base of my campsite and bring the water up to camp and talk with my friends while using the SteriPEN. I'd find myself a few times looking down after a bit and the light already had turned off - I'd get too carried away in conversation. It gives you a small blinking green light that lasts for about 20 seconds that'll tell you if the water is good to drink after it's finished purifying, but if you're talking to your friends or caught up in a sunrise or sunset or something worth seeing when out in the wilderness, it'd be nice for the system to vibrate to your hand to tell you it purified the water instead of being glued to watching the device the whole time.
43 people found this helpful
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Julia Barrett
5.0 out of 5 stars Do you want to die from water? No.
Reviewed in the United States on October 8, 2012
Verified Purchase
I initially debated this purchase, as it's not inexpensive, but it's a total win. My debate centered around version, price, weight and fragility. I trust the science behind it.

I'm notoriously sloppy with water purification, drinking tap water in Mexico, ice cubes in Myanmar and river water in Colombia. In preparation for an expedition to cross Madagascar, where water sources would be unknown, I decided it was time to consider my health. My last big gear-buying spree was in 2005 - it's pretty amazing the advancements since. For any hardcore trip where you risk destroying water tablets, using up iodine on other activities or serious dehydration...get a SteriPEN.

Key moments I was particularly thankful for SteriPEN:

1) When porters topped off a group pot of water we'd boiled the night before, which we realized as we went to tank up for the day. Wait 30 minutes for purification tablets, or, re-purify starter bottles with two wands for immediate consumption? Easy.

2) When I ran out of water and found a river an entire village used to wash dishes, laundry and bathe. I ran through the purification process twice, just for fun, drinking within five minutes.

Since returning from this trip, I've undergone multiple blood tests- the only bacteria strain found was contracted pre-SteriPEN. Having this, I am much more likely to drink wisely on future trips.

The weight was nominal and, while you certainly want to use the included case, it's sturdy enough. I had it in the outer pocket of my pack much of the trip. I used it in multiple 40oz Kleen Kanteen metal containers, which the math was a little tricky on, but I just over-purified when in doubt. Also "works" on Camelbak sacks. I do agree with various other reviews noting it's a little awkward to ensure the wand is submerged while you're stirring (otherwise it shuts off), but it's not a big deal. The signal light is easy enough to keep an eye on, but it would be nice if placed at the end of the handle. A lot of folks warn of contamination around the lip or mouthpiece of your container. Slosh it around while you're purifying or rinse your mouthpiece off with a purified bottle. At the end of the day, my bottles were being dragged through rivers and muck so there are really only so many preventative measures one can take.

Like any tool a life might depend upon, I tested it before departing to at least verify the light remained on through a full cycle, etc. I would encourage anyone to do the same.

October 2016: I still recommend SteriPEN as your primary method of water purification. Also great for extended trips or living abroad.
28 people found this helpful
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Top reviews from other countries

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Ambre
5.0 out of 5 stars Parfait !
Reviewed in France on September 25, 2014
Verified Purchase
Je cherchais un système me permettant de consommer de l'eau de qualité sans passer par les bouteilles en plastiques vendues en magasin. J'ai essayé les filtres du style brita, mais ce type de produit est controversé, du fait des résidus et du contenu des filtres qui avec l'usage finiraient par être nocif pour la santé !
Les bouteilles d'eau c'est trop contraignant et cher : les porter par 6 et le bisphénol m'ont conduit à trouver une solution me permettant de consommer l'eau du robinet.
Bien qu'en France la réglementation serait stricte, je préfère prendre les devants car je n'ai pas non plus confiance en la "qualité" de l'eau du robinet (résidus malgré leurs contrôles et filtrage en tout genre).
A présent je suis ravie de pouvoir filter l'eau du robinet. Je la met dans des bouteilles en verre comme à l'ancienne et puis au frigo !
Et hop : je bois de l'eau qui a le goût de l'eau des montagnes ou de l'eau de source. La qualité gustative est au RDV.

C'est un investissement qui paye à long terme tant au niveau de la qualité de l'eau que de la santé.
J'ai tout de même testé avec mon appareil, mais y'a pas trop de différence en ppm, peut être n'enlèverait-t-il que le mauvais ?

Eau du robinet sur Nice : 176 ppm
Filtrée : 136 ppm.

@ vous de juger !
6 people found this helpful
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Edward C
5.0 out of 5 stars Dependable
Reviewed in the United Kingdom on May 9, 2013
Verified Purchase
This has been mostly used for a trip to Nepal, it was a pleasure to use, and I imagine the main factor in keeping my completely healthy for 6 weeks.
I used it everyday for almost all of my water and I changed the batteries once. A great little thing if mineral water is hard to come by, its helped me out many a time when I have needed just a little water to brush my teeth, but cant be bothered to go out and find a shop!
Alternatives to this (things that kill viruses as well bacteria) are not terribly convincing, this is completely chemical free, and my tongue and general well being appreciate that.
I used it after filtering the water beforehand with a homemade gravity filter, as the water must be fairly clear to remain effective.
The only thing I would like to see improved is the strength of the led light which indicates the UV bulb is on; It can be a little difficult to see in direct sunlight, it is possible though, you may need to use your body to create a shadow. So not a massive issue!
14 people found this helpful
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jean guy drolet
4.0 out of 5 stars Four Stars
Reviewed in Canada on October 2, 2017
Verified Purchase
Work good for now I did not used in a critical situation
One person found this helpful
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M. F. Critchley
5.0 out of 5 stars Brought to replace a older model and I have used ...
Reviewed in the United Kingdom on February 14, 2016
Verified Purchase
Brought to replace a older model and I have used this extensively on hikes in Ireland and multi-day treks overseas. I use this in conjunction a 1 litre Nalgene water bottle and a Steripen filter to collect and sterilise drinking water (which is then transferred to our drinking bladders). I store the pen in Nalgene bottle when not is use.
One person found this helpful
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MIlmi
5.0 out of 5 stars Pratique !
Reviewed in France on December 5, 2014
Verified Purchase
Indispensable si vous devez voyager dans des pays où il n'y a pas l'eau courante.
Petit détail: il n'est pas possible de stériliser son eau directement dans sa bouteille en plastique (le goulot est trop étroit pour laisser passer le steri pen). J'ai dû pour ma part utiliser un gobelet transparent en plastique et ensuite transvaser l'eau dans ma bouteille.
Cela dit, la gêne est minimale.
8 people found this helpful
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